45279868191 has 24 divisors (see below), whose sum is σ = 61284283920. Its totient is φ = 29737691136.

The previous prime is 45279868159. The next prime is 45279868211. The reversal of 45279868191 is 19186897254.

It is not a de Polignac number, because 45279868191 - 2⁵ = 45279868159 is a prime.

It is a super-2 number, since 2×45279868191² (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 (45279868391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26681455 + ... + 26683151.

It is an arithmetic number, because the mean of its divisors is an integer number (2553511830).

Almost surely, 2^45279868191 is an apocalyptic number.

45279868191 is a deficient number, since it is larger than the sum of its proper divisors (16004415729).

45279868191 is a wasteful number, since it uses less digits than its factorization.

45279868191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3515 (or 3442 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 60.

The spelling of 45279868191 in words is "forty-five billion, two hundred seventy-nine million, eight hundred sixty-eight thousand, one hundred ninety-one".