18157760005013 has 4 divisors (see below), whose sum is σ = 18162291518880. Its totient is φ = 18153228491148.

The previous prime is 18157760004953. The next prime is 18157760005037. The reversal of 18157760005013 is 31050006775181.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18157760005013 - 2²⁶ = 18157692896149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18157760005093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2265750923 + ... + 2265758936.

It is an arithmetic number, because the mean of its divisors is an integer number (4540572879720).

Almost surely, 2^{18157760005013} is an apocalyptic number.

It is an amenable number.

18157760005013 is a deficient number, since it is larger than the sum of its proper divisors (4531513867).

18157760005013 is an equidigital number, since it uses as much as digits as its factorization.

18157760005013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531513866.

The product of its (nonzero) digits is 176400, while the sum is 44.

The spelling of 18157760005013 in words is "eighteen trillion, one hundred fifty-seven billion, seven hundred sixty million, five thousand, thirteen".