31143072676 has 9 divisors (see below), whose sum is σ = 54500994849. Its totient is φ = 15571359864.

The previous prime is 31143072671. The next prime is 31143072677. The reversal of 31143072676 is 67627034113.

The square root of 31143072676 is 176474.

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., 12762220900 + 18380851776 = 112970^2 + 135576^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31143072671) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 308830 + ... + 397066.

Almost surely, 2^31143072676 is an apocalyptic number.

31143072676 is the 176474-th square number.

It is an amenable number.

31143072676 is a deficient number, since it is larger than the sum of its proper divisors (23357922173).

31143072676 is an frugal number, since it uses more digits than its factorization.

31143072676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176478 (or 88239 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 31143072676 in words is "thirty-one billion, one hundred forty-three million, seventy-two thousand, six hundred seventy-six".