115644564031 has 2 divisors, whose sum is σ = 115644564032. Its totient is φ = 115644564030.

The previous prime is 115644563963. The next prime is 115644564107. The reversal of 115644564031 is 130465446511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115644564031 - 2¹¹ = 115644561983 is a prime.

It is a super-2 number, since 2×115644564031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115644564131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57822282015 + 57822282016.

It is an arithmetic number, because the mean of its divisors is an integer number (57822282016).

Almost surely, 2^115644564031 is an apocalyptic number.

115644564031 is a deficient number, since it is larger than the sum of its proper divisors (1).

115644564031 is an equidigital number, since it uses as much as digits as its factorization.

115644564031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 115644564031 in words is "one hundred fifteen billion, six hundred forty-four million, five hundred sixty-four thousand, thirty-one".