115857354269 has 2 divisors, whose sum is σ = 115857354270. Its totient is φ = 115857354268.

The previous prime is 115857354241. The next prime is 115857354271. The reversal of 115857354269 is 962453758511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110562900100 + 5294454169 = 332510^2 + 72763^2 .

It is a cyclic number.

It is not a de Polignac number, because 115857354269 - 2¹² = 115857350173 is a prime.

It is a super-2 number, since 2×115857354269² (a number of 23 digits) contains 22 as substring.

Together with 115857354271, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115857354299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57928677134 + 57928677135.

It is an arithmetic number, because the mean of its divisors is an integer number (57928677135).

Almost surely, 2^115857354269 is an apocalyptic number.

It is an amenable number.

115857354269 is a deficient number, since it is larger than the sum of its proper divisors (1).

115857354269 is an equidigital number, since it uses as much as digits as its factorization.

115857354269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072000, while the sum is 56.

The spelling of 115857354269 in words is "one hundred fifteen billion, eight hundred fifty-seven million, three hundred fifty-four thousand, two hundred sixty-nine".