18945014096977 has 4 divisors (see below), whose sum is σ = 18945099628900. Its totient is φ = 18944928565056.

The previous prime is 18945014096927. The next prime is 18945014097007. The reversal of 18945014096977 is 77969041054981.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 620929816081 + 18324084280896 = 787991^2 + 4280664^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18945014096977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18945014096917) 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, 42432852 + ... + 42876997.

It is an arithmetic number, because the mean of its divisors is an integer number (4736274907225).

Almost surely, 2^{18945014096977} is an apocalyptic number.

It is an amenable number.

18945014096977 is a deficient number, since it is larger than the sum of its proper divisors (85531923).

18945014096977 is an equidigital number, since it uses as much as digits as its factorization.

18945014096977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85531922.

The product of its (nonzero) digits is 137168640, while the sum is 70.

The spelling of 18945014096977 in words is "eighteen trillion, nine hundred forty-five billion, fourteen million, ninety-six thousand, nine hundred seventy-seven".