49639586944 has 16 divisors (see below), whose sum is σ = 98891364870. Its totient is φ = 24819793408.

The previous prime is 49639586939. The next prime is 49639586963. The reversal of 49639586944 is 44968593694.

It can be written as a sum of positive squares in only one way, i.e., 48087226944 + 1552360000 = 219288^2 + 39400^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 49639586944.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193904509 + ... + 193904764.

Almost surely, 2^49639586944 is an apocalyptic number.

It is an amenable number.

49639586944 is a deficient number, since it is larger than the sum of its proper divisors (49251777926).

49639586944 is an equidigital number, since it uses as much as digits as its factorization.

49639586944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387809287 (or 387809275 counting only the distinct ones).

The product of its digits is 201553920, while the sum is 67.

The spelling of 49639586944 in words is "forty-nine billion, six hundred thirty-nine million, five hundred eighty-six thousand, nine hundred forty-four".