43842147864 has 32 divisors (see below), whose sum is σ = 111106817520. Its totient is φ = 14413856256.

The previous prime is 43842147857. The next prime is 43842147871. The reversal of 43842147864 is 46874124834.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (43842147857) and next prime (43842147871).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12510277 + ... + 12513780.

Almost surely, 2^43842147864 is an apocalyptic number.

It is an amenable number.

43842147864 is an abundant number, since it is smaller than the sum of its proper divisors (67264669656).

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

43842147864 is a wasteful number, since it uses less digits than its factorization.

43842147864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25024139 (or 25024135 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 51.

The spelling of 43842147864 in words is "forty-three billion, eight hundred forty-two million, one hundred forty-seven thousand, eight hundred sixty-four".