23107287492 has 18 divisors (see below), whose sum is σ = 58410087918. Its totient is φ = 7702429152.

The previous prime is 23107287487. The next prime is 23107287503. The reversal of 23107287492 is 29478270132.

23107287492 is a `hidden beast` number, since 2 + 3 + 10 + 72 + 87 + 492 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15581030976 + 7526256516 = 124824^2 + 86754^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 320934513 + ... + 320934584.

Almost surely, 2^23107287492 is an apocalyptic number.

It is an amenable number.

23107287492 is an abundant number, since it is smaller than the sum of its proper divisors (35302800426).

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

23107287492 is a wasteful number, since it uses less digits than its factorization.

23107287492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641869107 (or 641869102 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 23107287492 in words is "twenty-three billion, one hundred seven million, two hundred eighty-seven thousand, four hundred ninety-two".