49911638154 has 32 divisors (see below), whose sum is σ = 115458255360. Its totient is φ = 14088654192.

The previous prime is 49911638131. The next prime is 49911638173. The reversal of 49911638154 is 45183611994.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 49911638097 and 49911638106.

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, 7155384 + ... + 7162355.

It is an arithmetic number, because the mean of its divisors is an integer number (3608070480).

Almost surely, 2^49911638154 is an apocalyptic number.

49911638154 is an abundant number, since it is smaller than the sum of its proper divisors (65546617206).

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

49911638154 is a wasteful number, since it uses less digits than its factorization.

49911638154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14317834.

The product of its digits is 933120, while the sum is 51.

The spelling of 49911638154 in words is "forty-nine billion, nine hundred eleven million, six hundred thirty-eight thousand, one hundred fifty-four".