115122776461 has 32 divisors (see below), whose sum is σ = 150200064000. Its totient is φ = 85559474880.

The previous prime is 115122776437. The next prime is 115122776473. The reversal of 115122776461 is 164677221511.

It is not a de Polignac number, because 115122776461 - 2⁷ = 115122776333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115122776411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 524950 + ... + 711208.

It is an arithmetic number, because the mean of its divisors is an integer number (4693752000).

Almost surely, 2^115122776461 is an apocalyptic number.

115122776461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115122776461 is a deficient number, since it is larger than the sum of its proper divisors (35077287539).

115122776461 is a wasteful number, since it uses less digits than its factorization.

115122776461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186649.

The product of its digits is 141120, while the sum is 43.

Adding to 115122776461 its reverse (164677221511), we get a palindrome (279799997972).

The spelling of 115122776461 in words is "one hundred fifteen billion, one hundred twenty-two million, seven hundred seventy-six thousand, four hundred sixty-one".