115786867477 has 2 divisors, whose sum is σ = 115786867478. Its totient is φ = 115786867476.

The previous prime is 115786867459. The next prime is 115786867501. The reversal of 115786867477 is 774768687511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114412386001 + 1374481476 = 338249^2 + 37074^2 .

It is a cyclic number.

It is not a de Polignac number, because 115786867477 - 2¹¹ = 115786865429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115786867177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57893433738 + 57893433739.

It is an arithmetic number, because the mean of its divisors is an integer number (57893433739).

Almost surely, 2^115786867477 is an apocalyptic number.

It is an amenable number.

115786867477 is a deficient number, since it is larger than the sum of its proper divisors (1).

115786867477 is an equidigital number, since it uses as much as digits as its factorization.

115786867477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110638080, while the sum is 67.

The spelling of 115786867477 in words is "one hundred fifteen billion, seven hundred eighty-six million, eight hundred sixty-seven thousand, four hundred seventy-seven".