57998991426 has 32 divisors (see below), whose sum is σ = 122960680128. Its totient is φ = 18175127040.

The previous prime is 57998991419. The next prime is 57998991439. The reversal of 57998991426 is 62419989975.

It is a Curzon 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, 231915 + ... + 412046.

It is an arithmetic number, because the mean of its divisors is an integer number (3842521254).

Almost surely, 2^57998991426 is an apocalyptic number.

57998991426 is an abundant number, since it is smaller than the sum of its proper divisors (64961688702).

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

57998991426 is a wasteful number, since it uses less digits than its factorization.

57998991426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644866.

The product of its digits is 88179840, while the sum is 69.

The spelling of 57998991426 in words is "fifty-seven billion, nine hundred ninety-eight million, nine hundred ninety-one thousand, four hundred twenty-six".