24140621421 has 48 divisors (see below), whose sum is σ = 40823697408. Its totient is φ = 13459802400.

The previous prime is 24140621387. The next prime is 24140621431. The reversal of 24140621421 is 12412604142.

24140621421 is a `hidden beast` number, since 2 + 4 + 14 + 0 + 621 + 4 + 21 = 666.

It is not a de Polignac number, because 24140621421 - 2²¹ = 24138524269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24140621431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 967776 + ... + 992406.

It is an arithmetic number, because the mean of its divisors is an integer number (850493696).

Almost surely, 2^24140621421 is an apocalyptic number.

24140621421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

24140621421 is a deficient number, since it is larger than the sum of its proper divisors (16683075987).

24140621421 is a wasteful number, since it uses less digits than its factorization.

24140621421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25022 (or 25019 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The spelling of 24140621421 in words is "twenty-four billion, one hundred forty million, six hundred twenty-one thousand, four hundred twenty-one".