18201837372911 has 2 divisors, whose sum is σ = 18201837372912. Its totient is φ = 18201837372910.

The previous prime is 18201837372847. The next prime is 18201837372941. The reversal of 18201837372911 is 11927373810281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18201837372911 - 2⁶ = 18201837372847 is a prime.

It is a super-2 number, since 2×18201837372911² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18201837372941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9100918686455 + 9100918686456.

It is an arithmetic number, because the mean of its divisors is an integer number (9100918686456).

Almost surely, 2^{18201837372911} is an apocalyptic number.

18201837372911 is a deficient number, since it is larger than the sum of its proper divisors (1).

18201837372911 is an equidigital number, since it uses as much as digits as its factorization.

18201837372911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 53.

The spelling of 18201837372911 in words is "eighteen trillion, two hundred one billion, eight hundred thirty-seven million, three hundred seventy-two thousand, nine hundred eleven".