24489766540 has 48 divisors (see below), whose sum is σ = 52338529152. Its totient is φ = 9624047616.

The previous prime is 24489766531. The next prime is 24489766547. The reversal of 24489766540 is 4566798442.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (24489766547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219709 + ... + 311851.

It is an arithmetic number, because the mean of its divisors is an integer number (1090386024).

Almost surely, 2^24489766540 is an apocalyptic number.

24489766540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24489766540 is an abundant number, since it is smaller than the sum of its proper divisors (27848762612).

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

24489766540 is a wasteful number, since it uses less digits than its factorization.

24489766540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92386 (or 92384 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 24489766540 in words is "twenty-four billion, four hundred eighty-nine million, seven hundred sixty-six thousand, five hundred forty".