44555499813 has 16 divisors (see below), whose sum is σ = 64850075136. Its totient is φ = 26985801840.

The previous prime is 44555499799. The next prime is 44555499827. The reversal of 44555499813 is 31899455544.

It is an interprime number because it is at equal distance from previous prime (44555499799) and next prime (44555499827).

It is not a de Polignac number, because 44555499813 - 2¹⁶ = 44555434277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44555499893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386595 + ... + 488432.

It is an arithmetic number, because the mean of its divisors is an integer number (4053129696).

Almost surely, 2^44555499813 is an apocalyptic number.

It is an amenable number.

44555499813 is a deficient number, since it is larger than the sum of its proper divisors (20294575323).

44555499813 is a wasteful number, since it uses less digits than its factorization.

44555499813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876584.

The product of its digits is 15552000, while the sum is 57.

The spelling of 44555499813 in words is "forty-four billion, five hundred fifty-five million, four hundred ninety-nine thousand, eight hundred thirteen".