31955360949 has 24 divisors (see below), whose sum is σ = 47894726880. Its totient is φ = 21291363216.

The previous prime is 31955360939. The next prime is 31955360953. The reversal of 31955360949 is 94906355913.

31955360949 is a `hidden beast` number, since 3 + 19 + 5 + 536 + 0 + 94 + 9 = 666.

It is not a de Polignac number, because 31955360949 - 2⁸ = 31955360693 is a prime.

It is a super-2 number, since 2×31955360949² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31955360895 and 31955360904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31955360909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 397447 + ... + 471035.

It is an arithmetic number, because the mean of its divisors is an integer number (1995613620).

Almost surely, 2^31955360949 is an apocalyptic number.

It is an amenable number.

31955360949 is a deficient number, since it is larger than the sum of its proper divisors (15939365931).

31955360949 is an equidigital number, since it uses as much as digits as its factorization.

31955360949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75391 (or 75379 counting only the distinct ones).

The product of its (nonzero) digits is 3936600, while the sum is 54.

The spelling of 31955360949 in words is "thirty-one billion, nine hundred fifty-five million, three hundred sixty thousand, nine hundred forty-nine".