90344442001 has 6 divisors (see below), whose sum is σ = 99304221506. Its totient is φ = 82131310800.

The previous prime is 90344441939. The next prime is 90344442059. The reversal of 90344442001 is 10024444309.

It can be written as a sum of positive squares in only one way, i.e., 90120640401 + 223801600 = 300201^2 + 14960^2 .

It is a de Polignac number, because none of the positive numbers 2^k-90344442001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90344442401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 373324020 + ... + 373324261.

Almost surely, 2^90344442001 is an apocalyptic number.

It is an amenable number.

90344442001 is a deficient number, since it is larger than the sum of its proper divisors (8959779505).

90344442001 is a wasteful number, since it uses less digits than its factorization.

90344442001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746648303 (or 746648292 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 90344442001 in words is "ninety billion, three hundred forty-four million, four hundred forty-two thousand, one".