951128942681 has 2 divisors, whose sum is σ = 951128942682. Its totient is φ = 951128942680.

The previous prime is 951128942639. The next prime is 951128942713. The reversal of 951128942681 is 186249821159.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 929795419081 + 21333523600 = 964259^2 + 146060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-951128942681 is a prime.

It is a super-2 number, since 2×951128942681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (951128942381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 475564471340 + 475564471341.

It is an arithmetic number, because the mean of its divisors is an integer number (475564471341).

Almost surely, 2^951128942681 is an apocalyptic number.

It is an amenable number.

951128942681 is a deficient number, since it is larger than the sum of its proper divisors (1).

951128942681 is an equidigital number, since it uses as much as digits as its factorization.

951128942681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2488320, while the sum is 56.

The spelling of 951128942681 in words is "nine hundred fifty-one billion, one hundred twenty-eight million, nine hundred forty-two thousand, six hundred eighty-one".