31216759142416 has 45 divisors (see below), whose sum is σ = 61261227691293. Its totient is φ = 15409933543680.

The previous prime is 31216759142411. The next prime is 31216759142467. The reversal of 31216759142416 is 61424195761213.

It is a happy number.

The square root of 31216759142416 is 5587196.

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

31216759142416 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8508865664016 + 22707893478400 = 2916996^2 + 4765280^2 .

It is a super-2 number, since 2×31216759142416² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31216759142411) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1765545096 + ... + 1765562776.

Almost surely, 2^{31216759142416} is an apocalyptic number.

31216759142416 is the 5587196-th square number.

It is an amenable number.

31216759142416 is a deficient number, since it is larger than the sum of its proper divisors (30044468548877).

31216759142416 is an frugal number, since it uses more digits than its factorization.

31216759142416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35528 (or 17762 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The spelling of 31216759142416 in words is "thirty-one trillion, two hundred sixteen billion, seven hundred fifty-nine million, one hundred forty-two thousand, four hundred sixteen".