24772139232 has 96 divisors (see below), whose sum is σ = 65563344000. Its totient is φ = 8189434368.

The previous prime is 24772139201. The next prime is 24772139261. The reversal of 24772139232 is 23293127742.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×24772139232² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16978119 + ... + 16979577.

It is an arithmetic number, because the mean of its divisors is an integer number (682951500).

Almost surely, 2^24772139232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 24772139232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32781672000).

24772139232 is an abundant number, since it is smaller than the sum of its proper divisors (40791204768).

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

24772139232 is a wasteful number, since it uses less digits than its factorization.

24772139232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808 (or 2800 counting only the distinct ones).

The product of its digits is 254016, while the sum is 42.

The spelling of 24772139232 in words is "twenty-four billion, seven hundred seventy-two million, one hundred thirty-nine thousand, two hundred thirty-two".