42839940536 has 16 divisors (see below), whose sum is σ = 80328008400. Its totient is φ = 21419138304.

The previous prime is 42839940511. The next prime is 42839940587. The reversal of 42839940536 is 63504993824.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151880 + ... + 329768.

It is an arithmetic number, because the mean of its divisors is an integer number (5020500525).

Almost surely, 2^42839940536 is an apocalyptic number.

It is an amenable number.

42839940536 is a deficient number, since it is larger than the sum of its proper divisors (37488067864).

42839940536 is a wasteful number, since it uses less digits than its factorization.

42839940536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207998 (or 207994 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 53.

The spelling of 42839940536 in words is "forty-two billion, eight hundred thirty-nine million, nine hundred forty thousand, five hundred thirty-six".