24972837140 has 24 divisors (see below), whose sum is σ = 55527838632. Its totient is φ = 9401538560.

The previous prime is 24972837139. The next prime is 24972837143. The reversal of 24972837140 is 4173827942.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3465441424 + 21507395716 = 58868^2 + 146654^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24972837143) 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, 36724421 + ... + 36725100.

It is an arithmetic number, because the mean of its divisors is an integer number (2313659943).

Almost surely, 2^24972837140 is an apocalyptic number.

24972837140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24972837140 is an abundant number, since it is smaller than the sum of its proper divisors (30555001492).

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

24972837140 is a wasteful number, since it uses less digits than its factorization.

24972837140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73449547 (or 73449545 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 24972837140 in words is "twenty-four billion, nine hundred seventy-two million, eight hundred thirty-seven thousand, one hundred forty".