49237121591 has 16 divisors (see below), whose sum is σ = 60742310400. Its totient is φ = 38976308448.

The previous prime is 49237121587. The next prime is 49237121599. The reversal of 49237121591 is 19512173294.

It is not a de Polignac number, because 49237121591 - 2² = 49237121587 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49237121599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5268101 + ... + 5277438.

It is an arithmetic number, because the mean of its divisors is an integer number (3796394400).

Almost surely, 2^49237121591 is an apocalyptic number.

49237121591 is a deficient number, since it is larger than the sum of its proper divisors (11505188809).

49237121591 is a wasteful number, since it uses less digits than its factorization.

49237121591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10545598.

The product of its digits is 136080, while the sum is 44.

The spelling of 49237121591 in words is "forty-nine billion, two hundred thirty-seven million, one hundred twenty-one thousand, five hundred ninety-one".