24790998921 has 32 divisors (see below), whose sum is σ = 35804426112. Its totient is φ = 15167454720.

The previous prime is 24790998857. The next prime is 24790999001. The reversal of 24790998921 is 12989909742.

It is not a de Polignac number, because 24790998921 - 2⁶ = 24790998857 is a prime.

It is a super-2 number, since 2×24790998921² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (24790998121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7458766 + ... + 7462088.

It is an arithmetic number, because the mean of its divisors is an integer number (1118888316).

Almost surely, 2^24790998921 is an apocalyptic number.

It is an amenable number.

24790998921 is a deficient number, since it is larger than the sum of its proper divisors (11013427191).

24790998921 is a wasteful number, since it uses less digits than its factorization.

24790998921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393.

The product of its (nonzero) digits is 5878656, while the sum is 60.

The spelling of 24790998921 in words is "twenty-four billion, seven hundred ninety million, nine hundred ninety-eight thousand, nine hundred twenty-one".