42437664402 has 64 divisors (see below), whose sum is σ = 101283333120. Its totient is φ = 11597495616.

The previous prime is 42437664391. The next prime is 42437664403. The reversal of 42437664402 is 20446673424.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (42437664403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32488 + ... + 293139.

It is an arithmetic number, because the mean of its divisors is an integer number (1582552080).

Almost surely, 2^42437664402 is an apocalyptic number.

42437664402 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

42437664402 is an abundant number, since it is smaller than the sum of its proper divisors (58845668718).

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

42437664402 is a wasteful number, since it uses less digits than its factorization.

42437664402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325775.

The product of its (nonzero) digits is 774144, while the sum is 42.

The spelling of 42437664402 in words is "forty-two billion, four hundred thirty-seven million, six hundred sixty-four thousand, four hundred two".