18360745624 has 64 divisors (see below), whose sum is σ = 39630306240. Its totient is φ = 7908003840.

The previous prime is 18360745609. The next prime is 18360745643. The reversal of 18360745624 is 42654706381.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 4464 + ... + 191680.

It is an arithmetic number, because the mean of its divisors is an integer number (619223535).

Almost surely, 2^18360745624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18360745624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19815153120).

18360745624 is an abundant number, since it is smaller than the sum of its proper divisors (21269560616).

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

18360745624 is a wasteful number, since it uses less digits than its factorization.

18360745624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187300 (or 187296 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 18360745624 in words is "eighteen billion, three hundred sixty million, seven hundred forty-five thousand, six hundred twenty-four".