24237920421 has 48 divisors (see below), whose sum is σ = 42919373952. Its totient is φ = 12970108800.

The previous prime is 24237920407. The next prime is 24237920429. The reversal of 24237920421 is 12402973242.

It is a happy number.

24237920421 is a `hidden beast` number, since 2 + 423 + 7 + 9 + 204 + 21 = 666.

It is not a de Polignac number, because 24237920421 - 2¹¹ = 24237918373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24237920429) 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, 379810 + ... + 439011.

It is an arithmetic number, because the mean of its divisors is an integer number (894153624).

Almost surely, 2^24237920421 is an apocalyptic number.

It is an amenable number.

24237920421 is a deficient number, since it is larger than the sum of its proper divisors (18681453531).

24237920421 is a wasteful number, since it uses less digits than its factorization.

24237920421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818874 (or 818871 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 24237920421 in words is "twenty-four billion, two hundred thirty-seven million, nine hundred twenty thousand, four hundred twenty-one".