49991593744 has 15 divisors (see below), whose sum is σ = 96860445717. Its totient is φ = 24995349696.

The previous prime is 49991593727. The next prime is 49991593753. The reversal of 49991593744 is 44739519994.

The square root of 49991593744 is 223588.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 27935779600 + 22055814144 = 167140^2 + 148512^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 866404 + ... + 922300.

Almost surely, 2^49991593744 is an apocalyptic number.

49991593744 is the 223588-th square number.

It is an amenable number.

49991593744 is a deficient number, since it is larger than the sum of its proper divisors (46868851973).

49991593744 is an frugal number, since it uses more digits than its factorization.

49991593744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111802 (or 55899 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 64.

Multiplying 49991593744 by its sum of digits (64), we get a square (3199461999616 = 1788704²).

The spelling of 49991593744 in words is "forty-nine billion, nine hundred ninety-one million, five hundred ninety-three thousand, seven hundred forty-four".