31836868481 has 16 divisors (see below), whose sum is σ = 34946952768. Its totient is φ = 28762977600.

The previous prime is 31836868471. The next prime is 31836868493. The reversal of 31836868481 is 18486863813.

It is a cyclic number.

It is not a de Polignac number, because 31836868481 - 2¹⁴ = 31836852097 is a prime.

It is a super-2 number, since 2×31836868481² (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 (31836868471) 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, 3445790 + ... + 3455016.

It is an arithmetic number, because the mean of its divisors is an integer number (2184184548).

Almost surely, 2^31836868481 is an apocalyptic number.

It is an amenable number.

31836868481 is a deficient number, since it is larger than the sum of its proper divisors (3110084287).

31836868481 is a wasteful number, since it uses less digits than its factorization.

31836868481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11152.

The product of its digits is 5308416, while the sum is 56.

The spelling of 31836868481 in words is "thirty-one billion, eight hundred thirty-six million, eight hundred sixty-eight thousand, four hundred eighty-one".