45125864421 has 16 divisors (see below), whose sum is σ = 69498658368. Its totient is φ = 25740243200.

The previous prime is 45125864411. The next prime is 45125864423. The reversal of 45125864421 is 12446852154.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 45125864421 - 2⁵ = 45125864389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45125864423) 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 15 ways as a sum of consecutive naturals, for example, 40218570 + ... + 40219691.

It is an arithmetic number, because the mean of its divisors is an integer number (4343666148).

Almost surely, 2^45125864421 is an apocalyptic number.

It is an amenable number.

45125864421 is a deficient number, since it is larger than the sum of its proper divisors (24372793947).

45125864421 is a wasteful number, since it uses less digits than its factorization.

45125864421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80438292.

The product of its digits is 307200, while the sum is 42.

The spelling of 45125864421 in words is "forty-five billion, one hundred twenty-five million, eight hundred sixty-four thousand, four hundred twenty-one".