42577665956 has 48 divisors (see below), whose sum is σ = 86408404992. Its totient is φ = 17979376800.

The previous prime is 42577665943. The next prime is 42577666009. The reversal of 42577665956 is 65956677524.

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, 3713825 + ... + 3725271.

It is an arithmetic number, because the mean of its divisors is an integer number (1800175104).

Almost surely, 2^42577665956 is an apocalyptic number.

It is an amenable number.

42577665956 is an abundant number, since it is smaller than the sum of its proper divisors (43830739036).

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

42577665956 is a wasteful number, since it uses less digits than its factorization.

42577665956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13400 (or 13398 counting only the distinct ones).

The product of its digits is 95256000, while the sum is 62.

The spelling of 42577665956 in words is "forty-two billion, five hundred seventy-seven million, six hundred sixty-five thousand, nine hundred fifty-six".