51527761104 has 80 divisors (see below), whose sum is σ = 138120895808. Its totient is φ = 16539365376.

The previous prime is 51527761091. The next prime is 51527761123. The reversal of 51527761104 is 40116772515.

It is a super-2 number, since 2×51527761104² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22719 + ... + 321825.

Almost surely, 2^51527761104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51527761104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69060447904).

51527761104 is an abundant number, since it is smaller than the sum of its proper divisors (86593134704).

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

51527761104 is a wasteful number, since it uses less digits than its factorization.

51527761104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299252 (or 299246 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 39.

The spelling of 51527761104 in words is "fifty-one billion, five hundred twenty-seven million, seven hundred sixty-one thousand, one hundred four".