115278586431 has 8 divisors (see below), whose sum is σ = 155197061760. Its totient is φ = 76106251032.

The previous prime is 115278586429. The next prime is 115278586433. The reversal of 115278586431 is 134685872511.

It is an interprime number because it is at equal distance from previous prime (115278586429) and next prime (115278586433).

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

It is not a de Polignac number, because 115278586431 - 2¹ = 115278586429 is a prime.

It is a super-2 number, since 2×115278586431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115278586433) 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, 186534621 + ... + 186535238.

It is an arithmetic number, because the mean of its divisors is an integer number (19399632720).

Almost surely, 2^115278586431 is an apocalyptic number.

115278586431 is a deficient number, since it is larger than the sum of its proper divisors (39918475329).

115278586431 is a wasteful number, since it uses less digits than its factorization.

115278586431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373069965.

The product of its digits is 1612800, while the sum is 51.

It can be divided in two parts, 11527 and 8586431, that added together give a palindrome (8597958).

The spelling of 115278586431 in words is "one hundred fifteen billion, two hundred seventy-eight million, five hundred eighty-six thousand, four hundred thirty-one".