57638081730 has 32 divisors (see below), whose sum is σ = 138388103424. Its totient is φ = 15363854336.

The previous prime is 57638081723. The next prime is 57638081737. The reversal of 57638081730 is 3718083675.

It is an interprime number because it is at equal distance from previous prime (57638081723) and next prime (57638081737).

It is a self number, because there is not a number n which added to its sum of digits gives 57638081730.

It is not an unprimeable number, because it can be changed into a prime (57638081737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319167 + ... + 465986.

It is an arithmetic number, because the mean of its divisors is an integer number (4324628232).

Almost surely, 2^57638081730 is an apocalyptic number.

57638081730 is an abundant number, since it is smaller than the sum of its proper divisors (80750021694).

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

57638081730 is a wasteful number, since it uses less digits than its factorization.

57638081730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787610.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 57638081730 in words is "fifty-seven billion, six hundred thirty-eight million, eighty-one thousand, seven hundred thirty".