49491654188 has 24 divisors (see below), whose sum is σ = 88297195392. Its totient is φ = 24264441344.

The previous prime is 49491654139. The next prime is 49491654211. The reversal of 49491654188 is 88145619494.

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, 290981 + ... + 428547.

It is an arithmetic number, because the mean of its divisors is an integer number (3679049808).

Almost surely, 2^49491654188 is an apocalyptic number.

It is an amenable number.

49491654188 is a deficient number, since it is larger than the sum of its proper divisors (38805541204).

49491654188 is a wasteful number, since it uses less digits than its factorization.

49491654188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139321 (or 139319 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 59.

The spelling of 49491654188 in words is "forty-nine billion, four hundred ninety-one million, six hundred fifty-four thousand, one hundred eighty-eight".