42564713550 has 24 divisors (see below), whose sum is σ = 105560489976. Its totient is φ = 11350590240.

The previous prime is 42564713549. The next prime is 42564713561. The reversal of 42564713550 is 5531746524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141882229 + ... + 141882528.

It is an arithmetic number, because the mean of its divisors is an integer number (4398353749).

Almost surely, 2^42564713550 is an apocalyptic number.

42564713550 is an abundant number, since it is smaller than the sum of its proper divisors (62995776426).

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

42564713550 is a wasteful number, since it uses less digits than its factorization.

42564713550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283764772 (or 283764767 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 42564713550 in words is "forty-two billion, five hundred sixty-four million, seven hundred thirteen thousand, five hundred fifty".