188911362697 has 2 divisors, whose sum is σ = 188911362698. Its totient is φ = 188911362696.

The previous prime is 188911362671. The next prime is 188911362797. The reversal of 188911362697 is 796263119881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128012968521 + 60898394176 = 357789^2 + 246776^2 .

It is a cyclic number.

It is not a de Polignac number, because 188911362697 - 2²³ = 188902974089 is a prime.

It is a super-2 number, since 2×188911362697² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (188911362667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94455681348 + 94455681349.

It is an arithmetic number, because the mean of its divisors is an integer number (94455681349).

Almost surely, 2^188911362697 is an apocalyptic number.

It is an amenable number.

188911362697 is a deficient number, since it is larger than the sum of its proper divisors (1).

188911362697 is an equidigital number, since it uses as much as digits as its factorization.

188911362697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 61.

The spelling of 188911362697 in words is "one hundred eighty-eight billion, nine hundred eleven million, three hundred sixty-two thousand, six hundred ninety-seven".