42236378856 has 80 divisors (see below), whose sum is σ = 135201121440. Its totient is φ = 12067535520.

The previous prime is 42236378851. The next prime is 42236378879. The reversal of 42236378856 is 65887363224.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (42236378851) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4651150 + ... + 4660221.

It is an arithmetic number, because the mean of its divisors is an integer number (1690014018).

Almost surely, 2^42236378856 is an apocalyptic number.

It is an amenable number.

42236378856 is an abundant number, since it is smaller than the sum of its proper divisors (92964742584).

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

42236378856 is a wasteful number, since it uses less digits than its factorization.

42236378856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9311396 (or 9311383 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 54.

The spelling of 42236378856 in words is "forty-two billion, two hundred thirty-six million, three hundred seventy-eight thousand, eight hundred fifty-six".