31734261887420 has 12 divisors (see below), whose sum is σ = 66641949963624. Its totient is φ = 12693704754960.

The previous prime is 31734261887417. The next prime is 31734261887431. The reversal of 31734261887420 is 2478816243713.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793356547166 + ... + 793356547205.

It is an arithmetic number, because the mean of its divisors is an integer number (5553495830302).

Almost surely, 2^{31734261887420} is an apocalyptic number.

It is an amenable number.

31734261887420 is an abundant number, since it is smaller than the sum of its proper divisors (34907688076204).

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

31734261887420 is a wasteful number, since it uses less digits than its factorization.

31734261887420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586713094380 (or 1586713094378 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 56.

The spelling of 31734261887420 in words is "thirty-one trillion, seven hundred thirty-four billion, two hundred sixty-one million, eight hundred eighty-seven thousand, four hundred twenty".