31633112449 has 9 divisors (see below), whose sum is σ = 32766865833. Its totient is φ = 30537335472.

The previous prime is 31633112443. The next prime is 31633112477. The reversal of 31633112449 is 94421133613.

The square root of 31633112449 is 177857.

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

It can be written as a sum of positive squares in 4 ways, for example, as 11002961025 + 20630151424 = 104895^2 + 143632^2 .

It is a de Polignac number, because none of the positive numbers 2^k-31633112449 is a prime.

It is a super-2 number, since 2×31633112449² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31633112443) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5154787 + ... + 5160919.

Almost surely, 2^31633112449 is an apocalyptic number.

31633112449 is the 177857-th square number.

31633112449 is the 88929-th centered octagonal number.

It is an amenable number.

31633112449 is a deficient number, since it is larger than the sum of its proper divisors (1133753384).

31633112449 is an frugal number, since it uses more digits than its factorization.

31633112449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12324 (or 6162 counting only the distinct ones).

The product of its digits is 46656, while the sum is 37.

The spelling of 31633112449 in words is "thirty-one billion, six hundred thirty-three million, one hundred twelve thousand, four hundred forty-nine".