44070420397637 has 2 divisors, whose sum is σ = 44070420397638. Its totient is φ = 44070420397636.

The previous prime is 44070420397613. The next prime is 44070420397643. The reversal of 44070420397637 is 73679302407044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27416177714116 + 16654242683521 = 5236046^2 + 4080961^2 .

It is a cyclic number.

It is not a de Polignac number, because 44070420397637 - 2⁶ = 44070420397573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44070420397037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22035210198818 + 22035210198819.

It is an arithmetic number, because the mean of its divisors is an integer number (22035210198819).

Almost surely, 2^{44070420397637} is an apocalyptic number.

It is an amenable number.

44070420397637 is a deficient number, since it is larger than the sum of its proper divisors (1).

44070420397637 is an equidigital number, since it uses as much as digits as its factorization.

44070420397637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21337344, while the sum is 56.

The spelling of 44070420397637 in words is "forty-four trillion, seventy billion, four hundred twenty million, three hundred ninety-seven thousand, six hundred thirty-seven".