40878520508 has 24 divisors (see below), whose sum is σ = 81766467552. Its totient is φ = 17517345984.

The previous prime is 40878520493. The next prime is 40878520513. The reversal of 40878520508 is 80502587804.

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, 177266 + ... + 336422.

It is an arithmetic number, because the mean of its divisors is an integer number (3406936148).

Almost surely, 2^40878520508 is an apocalyptic number.

It is an amenable number.

40878520508 is an abundant number, since it is smaller than the sum of its proper divisors (40887947044).

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

40878520508 is a wasteful number, since it uses less digits than its factorization.

40878520508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168341 (or 168339 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 47.

The spelling of 40878520508 in words is "forty billion, eight hundred seventy-eight million, five hundred twenty thousand, five hundred eight".