18377308311701 has 2 divisors, whose sum is σ = 18377308311702. Its totient is φ = 18377308311700.

The previous prime is 18377308311671. The next prime is 18377308311781. The reversal of 18377308311701 is 10711380377381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13215660562225 + 5161647749476 = 3635335^2 + 2271926^2 .

It is a cyclic number.

It is not a de Polignac number, because 18377308311701 - 2³⁰ = 18376234569877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18377308311701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18377308311781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9188654155850 + 9188654155851.

It is an arithmetic number, because the mean of its divisors is an integer number (9188654155851).

Almost surely, 2^{18377308311701} is an apocalyptic number.

It is an amenable number.

18377308311701 is a deficient number, since it is larger than the sum of its proper divisors (1).

18377308311701 is an equidigital number, since it uses as much as digits as its factorization.

18377308311701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 50.

The spelling of 18377308311701 in words is "eighteen trillion, three hundred seventy-seven billion, three hundred eight million, three hundred eleven thousand, seven hundred one".