61051270000 has 100 divisors (see below), whose sum is σ = 168927313456. Its totient is φ = 20931840000.

The previous prime is 61051269973. The next prime is 61051270013. The reversal of 61051270000 is 7215016.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×61051270000² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 366081 + ... + 506080.

Almost surely, 2^61051270000 is an apocalyptic number.

It is an amenable number.

61051270000 is an abundant number, since it is smaller than the sum of its proper divisors (107876043456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61051270000 is an equidigital number, since it uses as much as digits as its factorization.

61051270000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872196 (or 872175 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

Adding to 61051270000 its reverse (7215016), we get a palindrome (61058485016).

The spelling of 61051270000 in words is "sixty-one billion, fifty-one million, two hundred seventy thousand".