23377512990 has 64 divisors (see below), whose sum is σ = 60440821056. Its totient is φ = 5752660992.

The previous prime is 23377512979. The next prime is 23377513021. The reversal of 23377512990 is 9921577332.

It is a super-2 number, since 2×23377512990² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1581112 + ... + 1595828.

It is an arithmetic number, because the mean of its divisors is an integer number (944387829).

Almost surely, 2^23377512990 is an apocalyptic number.

23377512990 is an abundant number, since it is smaller than the sum of its proper divisors (37063308066).

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

23377512990 is a wasteful number, since it uses less digits than its factorization.

23377512990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18813.

The product of its (nonzero) digits is 714420, while the sum is 48.

The spelling of 23377512990 in words is "twenty-three billion, three hundred seventy-seven million, five hundred twelve thousand, nine hundred ninety".