49561631492 has 12 divisors (see below), whose sum is σ = 86751543900. Its totient is φ = 24775476096.

The previous prime is 49561631453. The next prime is 49561631501. The reversal of 49561631492 is 29413616594.

It can be written as a sum of positive squares in 2 ways, for example, as 43771334656 + 5790296836 = 209216^2 + 76094^2 .

It is a super-2 number, since 2×49561631492² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49561631492.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1313993 + ... + 1351184.

It is an arithmetic number, because the mean of its divisors is an integer number (7229295325).

Almost surely, 2^49561631492 is an apocalyptic number.

It is an amenable number.

49561631492 is a deficient number, since it is larger than the sum of its proper divisors (37189912408).

49561631492 is a wasteful number, since it uses less digits than its factorization.

49561631492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669830 (or 2669828 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 50.

The spelling of 49561631492 in words is "forty-nine billion, five hundred sixty-one million, six hundred thirty-one thousand, four hundred ninety-two".