31489212304 has 135 divisors (see below), whose sum is σ = 69560522451. Its totient is φ = 13798667520.

The previous prime is 31489212277. The next prime is 31489212311. The reversal of 31489212304 is 40321298413.

The square root of 31489212304 is 177452.

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

It can be written as a sum of positive squares in 4 ways, for example, as 11763571600 + 19725640704 = 108460^2 + 140448^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 288891802 + ... + 288891910.

Almost surely, 2^31489212304 is an apocalyptic number.

31489212304 is the 177452-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31489212304

31489212304 is an abundant number, since it is smaller than the sum of its proper divisors (38071310147).

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

31489212304 is a wasteful number, since it uses less digits than its factorization.

31489212304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 31489212304 in words is "thirty-one billion, four hundred eighty-nine million, two hundred twelve thousand, three hundred four".