657885114942 has 64 divisors (see below), whose sum is σ = 1490561630208. Its totient is φ = 191772828000.

The previous prime is 657885114923. The next prime is 657885114949. The reversal of 657885114942 is 249411588756.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (657885114949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 621034 + ... + 1304397.

It is an arithmetic number, because the mean of its divisors is an integer number (23290025472).

Almost surely, 2^657885114942 is an apocalyptic number.

657885114942 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

657885114942 is an abundant number, since it is smaller than the sum of its proper divisors (832676515266).

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

657885114942 is a wasteful number, since it uses less digits than its factorization.

657885114942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925645.

The product of its digits is 19353600, while the sum is 60.

The spelling of 657885114942 in words is "six hundred fifty-seven billion, eight hundred eighty-five million, one hundred fourteen thousand, nine hundred forty-two".