45441651121 has 4 divisors (see below), whose sum is σ = 46669803892. Its totient is φ = 44213498352.

The previous prime is 45441651109. The next prime is 45441651139. The reversal of 45441651121 is 12115614454.

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

It can be written as a sum of positive squares in 2 ways, for example, as 35329337521 + 10112313600 = 187961^2 + 100560^2 .

It is a cyclic number.

It is not a de Polignac number, because 45441651121 - 2²¹ = 45439553969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45441651721) 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, 614076330 + ... + 614076403.

It is an arithmetic number, because the mean of its divisors is an integer number (11667450973).

Almost surely, 2^45441651121 is an apocalyptic number.

It is an amenable number.

45441651121 is a deficient number, since it is larger than the sum of its proper divisors (1228152771).

45441651121 is a wasteful number, since it uses less digits than its factorization.

45441651121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228152770.

The product of its digits is 19200, while the sum is 34.

The spelling of 45441651121 in words is "forty-five billion, four hundred forty-one million, six hundred fifty-one thousand, one hundred twenty-one".