9152640972 has 36 divisors (see below), whose sum is σ = 23527980840. Its totient is φ = 2999169792.

The previous prime is 9152640971. The next prime is 9152640983. The reversal of 9152640972 is 2790462519.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (9152640971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2152453 + ... + 2156700.

Almost surely, 2^9152640972 is an apocalyptic number.

It is an amenable number.

9152640972 is an abundant number, since it is smaller than the sum of its proper divisors (14375339868).

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

9152640972 is a wasteful number, since it uses less digits than its factorization.

9152640972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309222 (or 4309217 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 9152640972 is about 95669.4359343673. The cubic root of 9152640972 is about 2091.7774438567. Note that the first 3 decimals are identical.

The spelling of 9152640972 in words is "nine billion, one hundred fifty-two million, six hundred forty thousand, nine hundred seventy-two".