18258037620 has 48 divisors (see below), whose sum is σ = 51390194688. Its totient is φ = 4843315840.

The previous prime is 18258037613. The next prime is 18258037627. The reversal of 18258037620 is 2673085281.

It is an interprime number because it is at equal distance from previous prime (18258037613) and next prime (18258037627).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18258037627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 785139 + ... + 808058.

It is an arithmetic number, because the mean of its divisors is an integer number (1070629056).

Almost surely, 2^18258037620 is an apocalyptic number.

18258037620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18258037620 is an abundant number, since it is smaller than the sum of its proper divisors (33132157068).

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

18258037620 is a wasteful number, since it uses less digits than its factorization.

18258037620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593400 (or 1593398 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 18258037620 in words is "eighteen billion, two hundred fifty-eight million, thirty-seven thousand, six hundred twenty".