115290405877 has 8 divisors (see below), whose sum is σ = 122148091800. Its totient is φ = 108441153024.

The previous prime is 115290405871. The next prime is 115290405883. The reversal of 115290405877 is 778504092511.

It is an interprime number because it is at equal distance from previous prime (115290405871) and next prime (115290405883).

It can be written as a sum of positive squares in 4 ways, for example, as 103555883601 + 11734522276 = 321801^2 + 108326^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115290405877 - 2¹⁹ = 115289881589 is a prime.

It is a super-2 number, since 2×115290405877² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115290405877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115290405871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2080102 + ... + 2134807.

It is an arithmetic number, because the mean of its divisors is an integer number (15268511475).

Almost surely, 2^115290405877 is an apocalyptic number.

115290405877 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

115290405877 is a deficient number, since it is larger than the sum of its proper divisors (6857685923).

115290405877 is a wasteful number, since it uses less digits than its factorization.

115290405877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4216535.

The product of its (nonzero) digits is 705600, while the sum is 49.

The spelling of 115290405877 in words is "one hundred fifteen billion, two hundred ninety million, four hundred five thousand, eight hundred seventy-seven".