31614471985 has 8 divisors (see below), whose sum is σ = 38291921856. Its totient is φ = 25055207280.

The previous prime is 31614471983. The next prime is 31614471989. The reversal of 31614471985 is 58917441613.

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

It is not a de Polignac number, because 31614471985 - 2¹ = 31614471983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31614471983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29545701 + ... + 29546770.

It is an arithmetic number, because the mean of its divisors is an integer number (4786490232).

Almost surely, 2^31614471985 is an apocalyptic number.

It is an amenable number.

31614471985 is a deficient number, since it is larger than the sum of its proper divisors (6677449871).

31614471985 is a wasteful number, since it uses less digits than its factorization.

31614471985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59092583.

The product of its digits is 725760, while the sum is 49.

It can be divided in two parts, 316144 and 71985, that added together give a square (388129 = 623²).

The spelling of 31614471985 in words is "thirty-one billion, six hundred fourteen million, four hundred seventy-one thousand, nine hundred eighty-five".