18242658312 has 32 divisors (see below), whose sum is σ = 46156128480. Its totient is φ = 6007621760.

The previous prime is 18242658293. The next prime is 18242658331. The reversal of 18242658312 is 21385624281.

It is an interprime number because it is at equal distance from previous prime (18242658293) and next prime (18242658331).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4576989 + ... + 4580972.

It is an arithmetic number, because the mean of its divisors is an integer number (1442379015).

Almost surely, 2^18242658312 is an apocalyptic number.

18242658312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18242658312 is an abundant number, since it is smaller than the sum of its proper divisors (27913470168).

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

18242658312 is a wasteful number, since it uses less digits than its factorization.

18242658312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9158053 (or 9158049 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The spelling of 18242658312 in words is "eighteen billion, two hundred forty-two million, six hundred fifty-eight thousand, three hundred twelve".