31386480734 has 8 divisors (see below), whose sum is σ = 53805395568. Its totient is φ = 13451348880.

The previous prime is 31386480733. The next prime is 31386480737. The reversal of 31386480734 is 43708468313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×31386480734² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31386480733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1120945727 + ... + 1120945754.

It is an arithmetic number, because the mean of its divisors is an integer number (6725674446).

Almost surely, 2^31386480734 is an apocalyptic number.

31386480734 is a deficient number, since it is larger than the sum of its proper divisors (22418914834).

31386480734 is a wasteful number, since it uses less digits than its factorization.

31386480734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241891490.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The spelling of 31386480734 in words is "thirty-one billion, three hundred eighty-six million, four hundred eighty thousand, seven hundred thirty-four".