45039051913 has 4 divisors (see below), whose sum is σ = 45267676740. Its totient is φ = 44810427088.

The previous prime is 45039051887. The next prime is 45039051919. The reversal of 45039051913 is 31915093054.

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 21072296569 + 23966755344 = 145163^2 + 154812^2 .

It is a cyclic number.

It is not a de Polignac number, because 45039051913 - 2⁹ = 45039051401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45039051919) 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, 114312118 + ... + 114312511.

It is an arithmetic number, because the mean of its divisors is an integer number (11316919185).

Almost surely, 2^45039051913 is an apocalyptic number.

It is an amenable number.

45039051913 is a deficient number, since it is larger than the sum of its proper divisors (228624827).

45039051913 is a wasteful number, since it uses less digits than its factorization.

45039051913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228624826.

The product of its (nonzero) digits is 72900, while the sum is 40.

The spelling of 45039051913 in words is "forty-five billion, thirty-nine million, fifty-one thousand, nine hundred thirteen".