44664494413 has 24 divisors (see below), whose sum is σ = 56817770240. Its totient is φ = 34362900000.

The previous prime is 44664494393. The next prime is 44664494419. The reversal of 44664494413 is 31449446644.

It is not a de Polignac number, because 44664494413 - 2²¹ = 44662397261 is a prime.

It is a super-2 number, since 2×44664494413² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44664494419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266838 + ... + 400663.

Almost surely, 2^44664494413 is an apocalyptic number.

It is an amenable number.

44664494413 is a deficient number, since it is larger than the sum of its proper divisors (12153275827).

44664494413 is a wasteful number, since it uses less digits than its factorization.

44664494413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667609 (or 667598 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 49.

The spelling of 44664494413 in words is "forty-four billion, six hundred sixty-four million, four hundred ninety-four thousand, four hundred thirteen".