18868357035 has 144 divisors (see below), whose sum is σ = 38882083968. Its totient is φ = 8425021440.

The previous prime is 18868357007. The next prime is 18868357091. The reversal of 18868357035 is 53075386881.

18868357035 is a `hidden beast` number, since 1 + 8 + 8 + 68 + 3 + 570 + 3 + 5 = 666.

It is not a de Polignac number, because 18868357035 - 2⁵ = 18868357003 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4348387 + ... + 4352723.

It is an arithmetic number, because the mean of its divisors is an integer number (270014472).

Almost surely, 2^18868357035 is an apocalyptic number.

18868357035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18868357035 is an abundant number, since it is smaller than the sum of its proper divisors (20013726933).

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

18868357035 is a wasteful number, since it uses less digits than its factorization.

18868357035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4434 (or 4420 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 18868357035 in words is "eighteen billion, eight hundred sixty-eight million, three hundred fifty-seven thousand, thirty-five".