49668996840 has 64 divisors (see below), whose sum is σ = 153034220160. Its totient is φ = 12887089920.

The previous prime is 49668996821. The next prime is 49668996863. The reversal of 49668996840 is 4869986694.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5588916 + ... + 5597795.

It is an arithmetic number, because the mean of its divisors is an integer number (2391159690).

Almost surely, 2^49668996840 is an apocalyptic number.

49668996840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49668996840 is an abundant number, since it is smaller than the sum of its proper divisors (103365223320).

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

49668996840 is a wasteful number, since it uses less digits than its factorization.

49668996840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11186762 (or 11186758 counting only the distinct ones).

The product of its (nonzero) digits is 161243136, while the sum is 69.

The spelling of 49668996840 in words is "forty-nine billion, six hundred sixty-eight million, nine hundred ninety-six thousand, eight hundred forty".