31485663364 has 9 divisors (see below), whose sum is σ = 55100531941. Its totient is φ = 15742654240.

The previous prime is 31485663353. The next prime is 31485663383. The reversal of 31485663364 is 46336658413.

The square root of 31485663364 is 177442.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10703557764 + 20782105600 = 103458^2 + 144160^2 .

It is a super-2 number, since 2×31485663364² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 310524 + ... + 399244.

Almost surely, 2^31485663364 is an apocalyptic number.

31485663364 is the 177442-nd square number.

It is an amenable number.

31485663364 is a deficient number, since it is larger than the sum of its proper divisors (23614868577).

31485663364 is an frugal number, since it uses more digits than its factorization.

31485663364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177446 (or 88723 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 49.

Multiplying 31485663364 by its sum of digits (49), we get a square (1542797504836 = 1242094²).

The spelling of 31485663364 in words is "thirty-one billion, four hundred eighty-five million, six hundred sixty-three thousand, three hundred sixty-four".