86899079279009 has 2 divisors, whose sum is σ = 86899079279010. Its totient is φ = 86899079279008.

The previous prime is 86899079278927. The next prime is 86899079279071. The reversal of 86899079279009 is 90097297099868.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84371058778384 + 2528020500625 = 9185372^2 + 1589975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86899079279009 is a prime.

It is not a weakly prime, because it can be changed into another prime (86899079279809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43449539639504 + 43449539639505.

It is an arithmetic number, because the mean of its divisors is an integer number (43449539639505).

Almost surely, 2^{86899079279009} is an apocalyptic number.

It is an amenable number.

86899079279009 is a deficient number, since it is larger than the sum of its proper divisors (1).

86899079279009 is an equidigital number, since it uses as much as digits as its factorization.

86899079279009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2222131968, while the sum is 83.

The spelling of 86899079279009 in words is "eighty-six trillion, eight hundred ninety-nine billion, seventy-nine million, two hundred seventy-nine thousand, nine".