23189571272 has 32 divisors (see below), whose sum is σ = 50049451200. Its totient is φ = 9866885184.

The previous prime is 23189571263. The next prime is 23189571277. The reversal of 23189571272 is 27217598132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23189571277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1481783 + ... + 1497350.

It is an arithmetic number, because the mean of its divisors is an integer number (1564045350).

Almost surely, 2^23189571272 is an apocalyptic number.

It is an amenable number.

23189571272 is an abundant number, since it is smaller than the sum of its proper divisors (26859879928).

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

23189571272 is a wasteful number, since it uses less digits than its factorization.

23189571272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979285 (or 2979281 counting only the distinct ones).

The product of its digits is 423360, while the sum is 47.

The spelling of 23189571272 in words is "twenty-three billion, one hundred eighty-nine million, five hundred seventy-one thousand, two hundred seventy-two".