31987674470 has 32 divisors (see below), whose sum is σ = 60975758016. Its totient is φ = 12040243200.

The previous prime is 31987674469. The next prime is 31987674473. The reversal of 31987674470 is 7447678913.

It is a super-2 number, since 2×31987674470² (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 (31987674473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1169855 + ... + 1196885.

It is an arithmetic number, because the mean of its divisors is an integer number (1905492438).

Almost surely, 2^31987674470 is an apocalyptic number.

31987674470 is a deficient number, since it is larger than the sum of its proper divisors (28988083546).

31987674470 is a wasteful number, since it uses less digits than its factorization.

31987674470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34016.

The product of its (nonzero) digits is 7112448, while the sum is 56.

The spelling of 31987674470 in words is "thirty-one billion, nine hundred eighty-seven million, six hundred seventy-four thousand, four hundred seventy".