115164579949 has 4 divisors (see below), whose sum is σ = 115193367900. Its totient is φ = 115135792000.

The previous prime is 115164579931. The next prime is 115164579953. The reversal of 115164579949 is 949975461511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 949975461511 = 11941 ⋅79555771.

It can be written as a sum of positive squares in 2 ways, for example, as 1398012100 + 113766567849 = 37390^2 + 337293^2 .

It is a cyclic number.

It is not a de Polignac number, because 115164579949 - 2¹¹ = 115164577901 is a prime.

It is a super-2 number, since 2×115164579949² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115164579349) 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, 14387974 + ... + 14395975.

It is an arithmetic number, because the mean of its divisors is an integer number (28798341975).

Almost surely, 2^115164579949 is an apocalyptic number.

It is an amenable number.

115164579949 is a deficient number, since it is larger than the sum of its proper divisors (28787951).

115164579949 is an equidigital number, since it uses as much as digits as its factorization.

115164579949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28787950.

The product of its digits is 12247200, while the sum is 61.

The spelling of 115164579949 in words is "one hundred fifteen billion, one hundred sixty-four million, five hundred seventy-nine thousand, nine hundred forty-nine".