9772540972 has 6 divisors (see below), whose sum is σ = 17101946708. Its totient is φ = 4886270484.

The previous prime is 9772540961. The next prime is 9772541003. The reversal of 9772540972 is 2790452779.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1221567618 + ... + 1221567625.

Almost surely, 2^9772540972 is an apocalyptic number.

It is an amenable number.

9772540972 is a deficient number, since it is larger than the sum of its proper divisors (7329405736).

9772540972 is a wasteful number, since it uses less digits than its factorization.

9772540972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443135247 (or 2443135245 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 52.

The square root of 9772540972 is about 98856.1630451031. The cubic root of 9772540972 is about 2137.9743964979.

The spelling of 9772540972 in words is "nine billion, seven hundred seventy-two million, five hundred forty thousand, nine hundred seventy-two".