31645110491932 has 36 divisors (see below), whose sum is σ = 65512274771160. Its totient is φ = 13332322575264.

The previous prime is 31645110491921. The next prime is 31645110491989. The reversal of 31645110491932 is 23919401154613.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1368248143 + ... + 1368271270.

It is an arithmetic number, because the mean of its divisors is an integer number (1819785410310).

Almost surely, 2^{31645110491932} is an apocalyptic number.

It is an amenable number.

31645110491932 is an abundant number, since it is smaller than the sum of its proper divisors (33867164279228).

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

31645110491932 is a wasteful number, since it uses less digits than its factorization.

31645110491932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736519490 (or 2736519481 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 31645110491932 in words is "thirty-one trillion, six hundred forty-five billion, one hundred ten million, four hundred ninety-one thousand, nine hundred thirty-two".