42939995508 has 24 divisors (see below), whose sum is σ = 111325914560. Its totient is φ = 14313331800.

The previous prime is 42939995507. The next prime is 42939995519. The reversal of 42939995508 is 80559993924.

42939995508 is a `hidden beast` number, since 4 + 2 + 9 + 39 + 9 + 95 + 508 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42939995507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198796168 + ... + 198796383.

Almost surely, 2^42939995508 is an apocalyptic number.

It is an amenable number.

42939995508 is an abundant number, since it is smaller than the sum of its proper divisors (68385919052).

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

42939995508 is a wasteful number, since it uses less digits than its factorization.

42939995508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397592564 (or 397592556 counting only the distinct ones).

The product of its (nonzero) digits is 31492800, while the sum is 63.

The spelling of 42939995508 in words is "forty-two billion, nine hundred thirty-nine million, nine hundred ninety-five thousand, five hundred eight".