42644340156 has 48 divisors (see below), whose sum is σ = 112050828288. Its totient is φ = 12505670400.

The previous prime is 42644340119. The next prime is 42644340169. The reversal of 42644340156 is 65104344624.

It is a congruent number.

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, 5206605 + ... + 5214788.

It is an arithmetic number, because the mean of its divisors is an integer number (2334392256).

Almost surely, 2^42644340156 is an apocalyptic number.

It is an amenable number.

42644340156 is an abundant number, since it is smaller than the sum of its proper divisors (69406488132).

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

42644340156 is a wasteful number, since it uses less digits than its factorization.

42644340156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10421442 (or 10421440 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 42644340156 in words is "forty-two billion, six hundred forty-four million, three hundred forty thousand, one hundred fifty-six".