31450894336 has 117 divisors (see below), whose sum is σ = 67223790921. Its totient is φ = 14709620736.

The previous prime is 31450894333. The next prime is 31450894369. The reversal of 31450894336 is 63349805413.

The square root of 31450894336 is 177344.

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., 24485990400 + 6964903936 = 156480^2 + 83456^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31450894333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 192950191 + ... + 192950353.

Almost surely, 2^31450894336 is an apocalyptic number.

31450894336 is the 177344-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31450894336

31450894336 is an abundant number, since it is smaller than the sum of its proper divisors (35772896585).

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

31450894336 is an frugal number, since it uses more digits than its factorization.

31450894336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 31450894336 in words is "thirty-one billion, four hundred fifty million, eight hundred ninety-four thousand, three hundred thirty-six".