115444720477881 has 6 divisors (see below), whose sum is σ = 166753485134730. Its totient is φ = 76963146985248.

The previous prime is 115444720477847. The next prime is 115444720477903. The reversal of 115444720477881 is 188774027444511.

115444720477881 is a `hidden beast` number, since 1 + 1 + 5 + 4 + 447 + 2 + 0 + 47 + 78 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 91857273008400 + 23587447469481 = 9584220^2 + 4856691^2 .

It is not a de Polignac number, because 115444720477881 - 2¹⁰ = 115444720476857 is a prime.

It is a super-2 number, since 2×115444720477881² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115444720477841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6413595582096 + ... + 6413595582113.

It is an arithmetic number, because the mean of its divisors is an integer number (27792247522455).

Almost surely, 2^{115444720477881} is an apocalyptic number.

It is an amenable number.

115444720477881 is a deficient number, since it is larger than the sum of its proper divisors (51308764656849).

115444720477881 is a wasteful number, since it uses less digits than its factorization.

115444720477881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12827191164215 (or 12827191164212 counting only the distinct ones).

The product of its (nonzero) digits is 56197120, while the sum is 63.

The spelling of 115444720477881 in words is "one hundred fifteen trillion, four hundred forty-four billion, seven hundred twenty million, four hundred seventy-seven thousand, eight hundred eighty-one".