45418444257 has 4 divisors (see below), whose sum is σ = 60557925680. Its totient is φ = 30278962836.

The previous prime is 45418444243. The next prime is 45418444259. The reversal of 45418444257 is 75244481454.

45418444257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 45418444257 - 2¹⁰ = 45418443233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45418444259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7569740707 + ... + 7569740712.

It is an arithmetic number, because the mean of its divisors is an integer number (15139481420).

Almost surely, 2^45418444257 is an apocalyptic number.

It is an amenable number.

45418444257 is a deficient number, since it is larger than the sum of its proper divisors (15139481423).

45418444257 is a wasteful number, since it uses less digits than its factorization.

45418444257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15139481422.

The product of its digits is 2867200, while the sum is 48.

The spelling of 45418444257 in words is "forty-five billion, four hundred eighteen million, four hundred forty-four thousand, two hundred fifty-seven".