45819999945 has 32 divisors (see below), whose sum is σ = 81484972800. Its totient is φ = 24429174912.

The previous prime is 45819999871. The next prime is 45819999947. The reversal of 45819999945 is 54999991854.

It is not a de Polignac number, because 45819999945 - 2¹⁰ = 45819998921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45819999947) 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 31 ways as a sum of consecutive naturals, for example, 360549 + ... + 470781.

It is an arithmetic number, because the mean of its divisors is an integer number (2546405400).

Almost surely, 2^45819999945 is an apocalyptic number.

45819999945 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45819999945 is a deficient number, since it is larger than the sum of its proper divisors (35664972855).

45819999945 is a wasteful number, since it uses less digits than its factorization.

45819999945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113326 (or 113320 counting only the distinct ones).

The product of its digits is 188956800, while the sum is 72.

The spelling of 45819999945 in words is "forty-five billion, eight hundred nineteen million, nine hundred ninety-nine thousand, nine hundred forty-five".