44155399679 has 2 divisors, whose sum is σ = 44155399680. Its totient is φ = 44155399678.

The previous prime is 44155399643. The next prime is 44155399693. The reversal of 44155399679 is 97699355144.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44155399679 - 2²⁰ = 44154351103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44155399699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22077699839 + 22077699840.

It is an arithmetic number, because the mean of its divisors is an integer number (22077699840).

Almost surely, 2^44155399679 is an apocalyptic number.

44155399679 is a deficient number, since it is larger than the sum of its proper divisors (1).

44155399679 is an equidigital number, since it uses as much as digits as its factorization.

44155399679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36741600, while the sum is 62.

The spelling of 44155399679 in words is "forty-four billion, one hundred fifty-five million, three hundred ninety-nine thousand, six hundred seventy-nine".