78527257020 has 36 divisors (see below), whose sum is σ = 238199346840. Its totient is φ = 20940601824.

The previous prime is 78527257007. The next prime is 78527257057. The reversal of 78527257020 is 2075272587.

78527257020 is a `hidden beast` number, since 7 + 8 + 5 + 2 + 72 + 570 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 218131090 + ... + 218131449.

Almost surely, 2^78527257020 is an apocalyptic number.

It is an amenable number.

78527257020 is an abundant number, since it is smaller than the sum of its proper divisors (159672089820).

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

78527257020 is a wasteful number, since it uses less digits than its factorization.

78527257020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436262554 (or 436262549 counting only the distinct ones).

The product of its (nonzero) digits is 548800, while the sum is 45.

The spelling of 78527257020 in words is "seventy-eight billion, five hundred twenty-seven million, two hundred fifty-seven thousand, twenty".