18750493615 has 48 divisors (see below), whose sum is σ = 27579208320. Its totient is φ = 12168636480.

The previous prime is 18750493549. The next prime is 18750493651. The reversal of 18750493615 is 51639405781.

It is not a de Polignac number, because 18750493615 - 2⁹ = 18750493103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9322960 + ... + 9324970.

It is an arithmetic number, because the mean of its divisors is an integer number (574566840).

Almost surely, 2^18750493615 is an apocalyptic number.

18750493615 is a deficient number, since it is larger than the sum of its proper divisors (8828714705).

18750493615 is a wasteful number, since it uses less digits than its factorization.

18750493615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052 (or 4045 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 18750493615 in words is "eighteen billion, seven hundred fifty million, four hundred ninety-three thousand, six hundred fifteen".