31497020676 has 81 divisors (see below), whose sum is σ = 87545973333. Its totient is φ = 9541002240.

The previous prime is 31497020603. The next prime is 31497020741. The reversal of 31497020676 is 67602079413.

The square root of 31497020676 is 177474.

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., 1137443076 + 30359577600 = 33726^2 + 174240^2 .

It is a super-2 number, since 2×31497020676² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 11711940 + ... + 11714628.

Almost surely, 2^31497020676 is an apocalyptic number.

31497020676 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

31497020676 is the 177474-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31497020676

31497020676 is an abundant number, since it is smaller than the sum of its proper divisors (56048952657).

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

31497020676 is a wasteful number, since it uses less digits than its factorization.

31497020676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5410 (or 2705 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 31497020676 in words is "thirty-one billion, four hundred ninety-seven million, twenty thousand, six hundred seventy-six".