1044564057617 has 8 divisors (see below), whose sum is σ = 1070255319840. Its totient is φ = 1018882990240.

The previous prime is 1044564057613. The next prime is 1044564057623. The reversal of 1044564057617 is 7167504654401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1044564057617 - 2² = 1044564057613 is a prime.

It is a super-2 number, since 2×1044564057617² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1044564057613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2341067 + ... + 2751312.

It is an arithmetic number, because the mean of its divisors is an integer number (133781914980).

Almost surely, 2^{1044564057617} is an apocalyptic number.

It is an amenable number.

1044564057617 is a deficient number, since it is larger than the sum of its proper divisors (25691262223).

1044564057617 is an equidigital number, since it uses as much as digits as its factorization.

1044564057617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5097423.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 1044564057617 in words is "one trillion, forty-four billion, five hundred sixty-four million, fifty-seven thousand, six hundred seventeen".