45455568391 has 4 divisors (see below), whose sum is σ = 46422708192. Its totient is φ = 44488428592.

The previous prime is 45455568377. The next prime is 45455568401. The reversal of 45455568391 is 19386555454.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45455568391 - 2²⁷ = 45321350663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45455568091) 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, 483569830 + ... + 483569923.

It is an arithmetic number, because the mean of its divisors is an integer number (11605677048).

Almost surely, 2^45455568391 is an apocalyptic number.

45455568391 is a deficient number, since it is larger than the sum of its proper divisors (967139801).

45455568391 is an equidigital number, since it uses as much as digits as its factorization.

45455568391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967139800.

The product of its digits is 12960000, while the sum is 55.

The spelling of 45455568391 in words is "forty-five billion, four hundred fifty-five million, five hundred sixty-eight thousand, three hundred ninety-one".