42656261930472 has 16 divisors (see below), whose sum is σ = 106640654826240. Its totient is φ = 14218753976816.

The previous prime is 42656261930423. The next prime is 42656261930509. The reversal of 42656261930472 is 27403916265624.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888672123528 + ... + 888672123575.

It is an arithmetic number, because the mean of its divisors is an integer number (6665040926640).

Almost surely, 2^{42656261930472} is an apocalyptic number.

It is an amenable number.

42656261930472 is an abundant number, since it is smaller than the sum of its proper divisors (63984392895768).

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

42656261930472 is a wasteful number, since it uses less digits than its factorization.

42656261930472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777344247112 (or 1777344247108 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 57.

The spelling of 42656261930472 in words is "forty-two trillion, six hundred fifty-six billion, two hundred sixty-one million, nine hundred thirty thousand, four hundred seventy-two".