85119988991137 has 2 divisors, whose sum is σ = 85119988991138. Its totient is φ = 85119988991136.

The previous prime is 85119988991113. The next prime is 85119988991239. The reversal of 85119988991137 is 73119988991158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72849792673681 + 12270196317456 = 8535209^2 + 3502884^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85119988991137 is a prime.

It is not a weakly prime, because it can be changed into another prime (85119988994137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42559994495568 + 42559994495569.

It is an arithmetic number, because the mean of its divisors is an integer number (42559994495569).

Almost surely, 2^{85119988991137} is an apocalyptic number.

It is an amenable number.

85119988991137 is a deficient number, since it is larger than the sum of its proper divisors (1).

85119988991137 is an equidigital number, since it uses as much as digits as its factorization.

85119988991137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352719360, while the sum is 79.

The spelling of 85119988991137 in words is "eighty-five trillion, one hundred nineteen billion, nine hundred eighty-eight million, nine hundred ninety-one thousand, one hundred thirty-seven".