23918685258 has 24 divisors (see below), whose sum is σ = 51800231808. Its totient is φ = 7359595152.

The previous prime is 23918685233. The next prime is 23918685269. The reversal of 23918685258 is 85258681932.

It is a junction number, because it is equal to n+sod(n) for n = 23918685198 and 23918685207.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11793210 + ... + 11795237.

It is an arithmetic number, because the mean of its divisors is an integer number (2158342992).

Almost surely, 2^23918685258 is an apocalyptic number.

23918685258 is an abundant number, since it is smaller than the sum of its proper divisors (27881546550).

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

23918685258 is a wasteful number, since it uses less digits than its factorization.

23918685258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23588478 (or 23588465 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 57.

The spelling of 23918685258 in words is "twenty-three billion, nine hundred eighteen million, six hundred eighty-five thousand, two hundred fifty-eight".