18535050520 has 64 divisors (see below), whose sum is σ = 47674370880. Its totient is φ = 6353166336.

The previous prime is 18535050511. The next prime is 18535050539. The reversal of 18535050520 is 2505053581.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1476912 + ... + 1489408.

It is an arithmetic number, because the mean of its divisors is an integer number (744912045).

Almost surely, 2^18535050520 is an apocalyptic number.

18535050520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18535050520 is an abundant number, since it is smaller than the sum of its proper divisors (29139320360).

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

18535050520 is a wasteful number, since it uses less digits than its factorization.

18535050520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17812 (or 17808 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 18535050520 in words is "eighteen billion, five hundred thirty-five million, fifty thousand, five hundred twenty".