57698922437 has 16 divisors (see below), whose sum is σ = 66155976432. Its totient is φ = 49850588160.

The previous prime is 57698922433. The next prime is 57698922451. The reversal of 57698922437 is 73422989675.

It is a Cunningham number, because it is equal to 240206²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 1 + 57698922436 = 1^2 + 240206^2 .

It is a cyclic number.

It is not a de Polignac number, because 57698922437 - 2² = 57698922433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57698922437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57698922433) 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, 681218 + ... + 761219.

It is an arithmetic number, because the mean of its divisors is an integer number (4134748527).

Almost surely, 2^57698922437 is an apocalyptic number.

It is an amenable number.

57698922437 is a deficient number, since it is larger than the sum of its proper divisors (8457053995).

57698922437 is a wasteful number, since it uses less digits than its factorization.

57698922437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442648.

The product of its digits is 45722880, while the sum is 62.

The spelling of 57698922437 in words is "fifty-seven billion, six hundred ninety-eight million, nine hundred twenty-two thousand, four hundred thirty-seven".