44145987037 has 2 divisors, whose sum is σ = 44145987038. Its totient is φ = 44145987036.

The previous prime is 44145987029. The next prime is 44145987049. The reversal of 44145987037 is 73078954144.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25393697316 + 18752289721 = 159354^2 + 136939^2 .

It is a cyclic number.

It is not a de Polignac number, because 44145987037 - 2³ = 44145987029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44145981037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22072993518 + 22072993519.

It is an arithmetic number, because the mean of its divisors is an integer number (22072993519).

Almost surely, 2^44145987037 is an apocalyptic number.

It is an amenable number.

44145987037 is a deficient number, since it is larger than the sum of its proper divisors (1).

44145987037 is an equidigital number, since it uses as much as digits as its factorization.

44145987037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 44145987037 in words is "forty-four billion, one hundred forty-five million, nine hundred eighty-seven thousand, thirty-seven".