49904193990 has 64 divisors (see below), whose sum is σ = 137425559040. Its totient is φ = 11361216000.

The previous prime is 49904193961. The next prime is 49904194057. The reversal of 49904193990 is 9939140994.

49904193990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 49904193990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 420675 + ... + 526094.

It is an arithmetic number, because the mean of its divisors is an integer number (2147274360).

Almost surely, 2^49904193990 is an apocalyptic number.

49904193990 is an abundant number, since it is smaller than the sum of its proper divisors (87521365050).

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

49904193990 is a wasteful number, since it uses less digits than its factorization.

49904193990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947037.

The product of its (nonzero) digits is 2834352, while the sum is 57.

The spelling of 49904193990 in words is "forty-nine billion, nine hundred four million, one hundred ninety-three thousand, nine hundred ninety".