77525126460 has 48 divisors (see below), whose sum is σ = 241189284000. Its totient is φ = 20673366912.

The previous prime is 77525126443. The next prime is 77525126489. The reversal of 77525126460 is 6462152577.

77525126460 is a `hidden beast` number, since 7 + 7 + 525 + 1 + 2 + 64 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 71781985 + ... + 71783064.

It is an arithmetic number, because the mean of its divisors is an integer number (5024776750).

Almost surely, 2^77525126460 is an apocalyptic number.

It is an amenable number.

77525126460 is an abundant number, since it is smaller than the sum of its proper divisors (163664157540).

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

77525126460 is a wasteful number, since it uses less digits than its factorization.

77525126460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143565067 (or 143565059 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 77525126460 in words is "seventy-seven billion, five hundred twenty-five million, one hundred twenty-six thousand, four hundred sixty".