31793171000 has 64 divisors (see below), whose sum is σ = 74465239680. Its totient is φ = 12705436800.

The previous prime is 31793170987. The next prime is 31793171023. The reversal of 31793171000 is 17139713.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1102769 + ... + 1131231.

It is an arithmetic number, because the mean of its divisors is an integer number (1163519370).

Almost surely, 2^31793171000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31793171000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37232619840).

31793171000 is an abundant number, since it is smaller than the sum of its proper divisors (42672068680).

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

31793171000 is a wasteful number, since it uses less digits than its factorization.

31793171000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29601 (or 29587 counting only the distinct ones).

The product of its (nonzero) digits is 3969, while the sum is 32.

The spelling of 31793171000 in words is "thirty-one billion, seven hundred ninety-three million, one hundred seventy-one thousand".