31732770081 has 8 divisors (see below), whose sum is σ = 42311273760. Its totient is φ = 21154723232.

The previous prime is 31732770049. The next prime is 31732770089. The reversal of 31732770081 is 18007723713.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31732770081 - 2⁵ = 31732770049 is a prime.

It is a super-2 number, since 2×31732770081² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31732770089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111730 + ... + 275588.

It is an arithmetic number, because the mean of its divisors is an integer number (5288909220).

Almost surely, 2^31732770081 is an apocalyptic number.

It is an amenable number.

31732770081 is a deficient number, since it is larger than the sum of its proper divisors (10578503679).

31732770081 is a wasteful number, since it uses less digits than its factorization.

31732770081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228415.

The product of its (nonzero) digits is 49392, while the sum is 39.

The spelling of 31732770081 in words is "thirty-one billion, seven hundred thirty-two million, seven hundred seventy thousand, eighty-one".