18862641234 has 24 divisors (see below), whose sum is σ = 42382725840. Its totient is φ = 6287546916.

The previous prime is 18862641211. The next prime is 18862641257. The reversal of 18862641234 is 43214626881.

18862641234 is a `hidden beast` number, since 1 + 8 + 8 + 626 + 4 + 12 + 3 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (18862641211) and next prime (18862641257).

It is a self number, because there is not a number n which added to its sum of digits gives 18862641234.

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, 19405524 + ... + 19406495.

It is an arithmetic number, because the mean of its divisors is an integer number (1765946910).

Almost surely, 2^18862641234 is an apocalyptic number.

18862641234 is an abundant number, since it is smaller than the sum of its proper divisors (23520084606).

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

18862641234 is an equidigital number, since it uses as much as digits as its factorization.

18862641234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38812036 (or 38812024 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The spelling of 18862641234 in words is "eighteen billion, eight hundred sixty-two million, six hundred forty-one thousand, two hundred thirty-four".