57698138918 has 32 divisors (see below), whose sum is σ = 99917176320. Its totient is φ = 24476474880.

The previous prime is 57698138917. The next prime is 57698139011. The reversal of 57698138918 is 81983189675.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57698138917) 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, 3641798 + ... + 3657606.

It is an arithmetic number, because the mean of its divisors is an integer number (3122411760).

Almost surely, 2^57698138918 is an apocalyptic number.

57698138918 is a deficient number, since it is larger than the sum of its proper divisors (42219037402).

57698138918 is a wasteful number, since it uses less digits than its factorization.

57698138918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18452.

The product of its digits is 26127360, while the sum is 65.

The spelling of 57698138918 in words is "fifty-seven billion, six hundred ninety-eight million, one hundred thirty-eight thousand, nine hundred eighteen".