23171079890 has 128 divisors (see below), whose sum is σ = 50798555136. Its totient is φ = 7441920000.

The previous prime is 23171079829. The next prime is 23171079907. The reversal of 23171079890 is 9897017132.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12187940 + ... + 12189840.

It is an arithmetic number, because the mean of its divisors is an integer number (396863712).

Almost surely, 2^23171079890 is an apocalyptic number.

23171079890 is an abundant number, since it is smaller than the sum of its proper divisors (27627475246).

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

23171079890 is a wasteful number, since it uses less digits than its factorization.

23171079890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124.

The product of its (nonzero) digits is 190512, while the sum is 47.

The spelling of 23171079890 in words is "twenty-three billion, one hundred seventy-one million, seventy-nine thousand, eight hundred ninety".