23247817988 has 6 divisors (see below), whose sum is σ = 40683681486. Its totient is φ = 11623908992.

The previous prime is 23247817963. The next prime is 23247817993. The reversal of 23247817988 is 88971874232.

It can be written as a sum of positive squares in only one way, i.e., 23004395584 + 243422404 = 151672^2 + 15602^2 .

It is a super-2 number, since 2×23247817988² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2905977245 + ... + 2905977252.

It is an arithmetic number, because the mean of its divisors is an integer number (6780613581).

Almost surely, 2^23247817988 is an apocalyptic number.

It is an amenable number.

23247817988 is a deficient number, since it is larger than the sum of its proper divisors (17435863498).

23247817988 is a wasteful number, since it uses less digits than its factorization.

23247817988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5811954501 (or 5811954499 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 59.

The spelling of 23247817988 in words is "twenty-three billion, two hundred forty-seven million, eight hundred seventeen thousand, nine hundred eighty-eight".