49855193938 has 16 divisors (see below), whose sum is σ = 83786125824. Its totient is φ = 22048979760.

The previous prime is 49855193911. The next prime is 49855193959. The reversal of 49855193938 is 83939155894.

It is a self number, because there is not a number n which added to its sum of digits gives 49855193938.

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, 30622770 + ... + 30624397.

It is an arithmetic number, because the mean of its divisors is an integer number (5236632864).

Almost surely, 2^49855193938 is an apocalyptic number.

49855193938 is a deficient number, since it is larger than the sum of its proper divisors (33930931886).

49855193938 is a wasteful number, since it uses less digits than its factorization.

49855193938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61247217.

The product of its digits is 41990400, while the sum is 64.

The spelling of 49855193938 in words is "forty-nine billion, eight hundred fifty-five million, one hundred ninety-three thousand, nine hundred thirty-eight".