115437616477 has 4 divisors (see below), whose sum is σ = 115439610780. Its totient is φ = 115435622176.

The previous prime is 115437616457. The next prime is 115437616507. The reversal of 115437616477 is 774616734511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 774616734511 = 23 ⋅33678988457.

It can be written as a sum of positive squares in 2 ways, for example, as 54245204836 + 61192411641 = 232906^2 + 247371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115437616477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115437616417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907648 + ... + 1026985.

It is an arithmetic number, because the mean of its divisors is an integer number (28859902695).

Almost surely, 2^115437616477 is an apocalyptic number.

It is an amenable number.

115437616477 is a deficient number, since it is larger than the sum of its proper divisors (1994303).

115437616477 is an equidigital number, since it uses as much as digits as its factorization.

115437616477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994302.

The product of its digits is 2963520, while the sum is 52.

The spelling of 115437616477 in words is "one hundred fifteen billion, four hundred thirty-seven million, six hundred sixteen thousand, four hundred seventy-seven".