45078339517 has 4 divisors (see below), whose sum is σ = 45078764220. Its totient is φ = 45077914816.

The previous prime is 45078339503. The next prime is 45078339563. The reversal of 45078339517 is 71593387054.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 26802273796 + 18276065721 = 163714^2 + 135189^2 .

It is a cyclic number.

It is not a de Polignac number, because 45078339517 - 2³⁵ = 10718601149 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 (45078339617) 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, 100443 + ... + 316615.

It is an arithmetic number, because the mean of its divisors is an integer number (11269691055).

Almost surely, 2^45078339517 is an apocalyptic number.

It is an amenable number.

45078339517 is a deficient number, since it is larger than the sum of its proper divisors (424703).

45078339517 is a wasteful number, since it uses less digits than its factorization.

45078339517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424702.

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 45078339517 in words is "forty-five billion, seventy-eight million, three hundred thirty-nine thousand, five hundred seventeen".