44691938437 has 4 divisors (see below), whose sum is σ = 44694632736. Its totient is φ = 44689244140.

The previous prime is 44691938407. The next prime is 44691938471. The reversal of 44691938437 is 73483919644.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44691938437 - 2¹⁵ = 44691905669 is a prime.

It is a super-2 number, since 2×44691938437² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44691938407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1322113 + ... + 1355494.

It is an arithmetic number, because the mean of its divisors is an integer number (11173658184).

Almost surely, 2^44691938437 is an apocalyptic number.

It is an amenable number.

44691938437 is a deficient number, since it is larger than the sum of its proper divisors (2694299).

44691938437 is a wasteful number, since it uses less digits than its factorization.

44691938437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2694298.

The product of its digits is 15676416, while the sum is 58.

The spelling of 44691938437 in words is "forty-four billion, six hundred ninety-one million, nine hundred thirty-eight thousand, four hundred thirty-seven".