31923468786 has 16 divisors (see below), whose sum is σ = 69651204768. Its totient is φ = 9673778400.

The previous prime is 31923468781. The next prime is 31923468821. The reversal of 31923468786 is 68786432913.

It is not an unprimeable number, because it can be changed into a prime (31923468781) 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, 241844395 + ... + 241844526.

It is an arithmetic number, because the mean of its divisors is an integer number (4353200298).

Almost surely, 2^31923468786 is an apocalyptic number.

31923468786 is an abundant number, since it is smaller than the sum of its proper divisors (37727735982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31923468786 is a wasteful number, since it uses less digits than its factorization.

31923468786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483688937.

The product of its digits is 10450944, while the sum is 57.

The spelling of 31923468786 in words is "thirty-one billion, nine hundred twenty-three million, four hundred sixty-eight thousand, seven hundred eighty-six".