18720930780295 has 32 divisors (see below), whose sum is σ = 22862268346176. Its totient is φ = 14712607334400.

The previous prime is 18720930780269. The next prime is 18720930780371. The reversal of 18720930780295 is 59208703902781.

It is not a de Polignac number, because 18720930780295 - 2⁹ = 18720930779783 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1277261607 + ... + 1277276263.

It is an arithmetic number, because the mean of its divisors is an integer number (714445885818).

Almost surely, 2^{18720930780295} is an apocalyptic number.

18720930780295 is a deficient number, since it is larger than the sum of its proper divisors (4141337565881).

18720930780295 is a wasteful number, since it uses less digits than its factorization.

18720930780295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19731.

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 18720930780295 in words is "eighteen trillion, seven hundred twenty billion, nine hundred thirty million, seven hundred eighty thousand, two hundred ninety-five".