31429157161892 has 24 divisors (see below), whose sum is σ = 62911539042240. Its totient is φ = 13458233486880.

The previous prime is 31429157161889. The next prime is 31429157161901. The reversal of 31429157161892 is 29816175192413.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475187042 + ... + 475253177.

It is an arithmetic number, because the mean of its divisors is an integer number (2621314126760).

Almost surely, 2^{31429157161892} is an apocalyptic number.

It is an amenable number.

31429157161892 is an abundant number, since it is smaller than the sum of its proper divisors (31482381880348).

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

31429157161892 is a wasteful number, since it uses less digits than its factorization.

31429157161892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950441411 (or 950441409 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 59.

The spelling of 31429157161892 in words is "thirty-one trillion, four hundred twenty-nine billion, one hundred fifty-seven million, one hundred sixty-one thousand, eight hundred ninety-two".