49389411731 has 4 divisors (see below), whose sum is σ = 53879358264. Its totient is φ = 44899465200.

The previous prime is 49389411713. The next prime is 49389411749. The reversal of 49389411731 is 13711498394.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (49389411713) and next prime (49389411749).

It is a cyclic number.

It is not a de Polignac number, because 49389411731 - 2¹⁸ = 49389149587 is a prime.

It is a super-2 number, since 2×49389411731² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49389411731.

It is not an unprimeable number, because it can be changed into a prime (49389461731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2244973250 + ... + 2244973271.

It is an arithmetic number, because the mean of its divisors is an integer number (13469839566).

Almost surely, 2^49389411731 is an apocalyptic number.

49389411731 is a deficient number, since it is larger than the sum of its proper divisors (4489946533).

49389411731 is a wasteful number, since it uses less digits than its factorization.

49389411731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4489946532.

The product of its digits is 653184, while the sum is 50.

The spelling of 49389411731 in words is "forty-nine billion, three hundred eighty-nine million, four hundred eleven thousand, seven hundred thirty-one".