44913479657 has 4 divisors (see below), whose sum is σ = 44915263956. Its totient is φ = 44911695360.

The previous prime is 44913479627. The next prime is 44913479659. The reversal of 44913479657 is 75697431944.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44007228841 + 906250816 = 209779^2 + 30104^2 .

It is a cyclic number.

It is not a de Polignac number, because 44913479657 - 2¹⁸ = 44913217513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44913479596 and 44913479605.

It is not an unprimeable number, because it can be changed into a prime (44913479659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853844 + ... + 904917.

It is an arithmetic number, because the mean of its divisors is an integer number (11228815989).

Almost surely, 2^44913479657 is an apocalyptic number.

It is an amenable number.

44913479657 is a deficient number, since it is larger than the sum of its proper divisors (1784299).

44913479657 is a wasteful number, since it uses less digits than its factorization.

44913479657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784298.

The product of its digits is 22861440, while the sum is 59.

The spelling of 44913479657 in words is "forty-four billion, nine hundred thirteen million, four hundred seventy-nine thousand, six hundred fifty-seven".