23721077990 has 32 divisors (see below), whose sum is σ = 43847516160. Its totient is φ = 9236354400.

The previous prime is 23721077987. The next prime is 23721078001. The reversal of 23721077990 is 9977012732.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155366 + ... + 267545.

It is an arithmetic number, because the mean of its divisors is an integer number (1370234880).

Almost surely, 2^23721077990 is an apocalyptic number.

23721077990 is a deficient number, since it is larger than the sum of its proper divisors (20126438170).

23721077990 is a wasteful number, since it uses less digits than its factorization.

23721077990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423068.

The product of its (nonzero) digits is 333396, while the sum is 47.

The spelling of 23721077990 in words is "twenty-three billion, seven hundred twenty-one million, seventy-seven thousand, nine hundred ninety".