31858732077316 has 27 divisors (see below), whose sum is σ = 55838591364927. Its totient is φ = 15904886475360.

The previous prime is 31858732077311. The next prime is 31858732077377. The reversal of 31858732077316 is 61377023785813.

The square root of 31858732077316 is 5644354.

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 297886724100 + 31560845353216 = 545790^2 + 5617904^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31858732077311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8997098506 + ... + 8997102046.

Almost surely, 2^{31858732077316} is an apocalyptic number.

31858732077316 is the 5644354-th square number.

It is an amenable number.

31858732077316 is a deficient number, since it is larger than the sum of its proper divisors (23979859287611).

31858732077316 is an frugal number, since it uses more digits than its factorization.

31858732077316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8680 (or 4340 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 31858732077316 in words is "thirty-one trillion, eight hundred fifty-eight billion, seven hundred thirty-two million, seventy-seven thousand, three hundred sixteen".