1051279051761 has 9 divisors (see below), whose sum is σ = 1518518628939. Its totient is φ = 700850650536.

The previous prime is 1051279051709. The next prime is 1051279051819. The reversal of 1051279051761 is 1671509721501.

The square root of 1051279051761 is 1025319.

It is a perfect power (a square), and thus also a powerful number.

1051279051761 is a `hidden beast` number, since 1 + 0 + 5 + 1 + 2 + 79 + 0 + 517 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 115501421025 + 935777630736 = 339855^2 + 967356^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 1051279051761 - 2³¹ = 1049131568113 is a prime.

It is a super-2 number, since 2×1051279051761² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051279051561) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2905071 + ... + 3246843.

Almost surely, 2^{1051279051761} is an apocalyptic number.

1051279051761 is the 1025319-th square number.

1051279051761 is the 512660-th centered octagonal number.

It is an amenable number.

1051279051761 is a deficient number, since it is larger than the sum of its proper divisors (467239577178).

1051279051761 is an frugal number, since it uses more digits than its factorization.

1051279051761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683552 (or 341776 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 45.

The spelling of 1051279051761 in words is "one trillion, fifty-one billion, two hundred seventy-nine million, fifty-one thousand, seven hundred sixty-one".