45420454615 has 4 divisors (see below), whose sum is σ = 54504545544. Its totient is φ = 36336363688.

The previous prime is 45420454613. The next prime is 45420454621. The reversal of 45420454615 is 51645402454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51645402454 = 2 ⋅25822701227.

It is a cyclic number.

It is not a de Polignac number, because 45420454615 - 2¹ = 45420454613 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 (45420454613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4542045457 + ... + 4542045466.

It is an arithmetic number, because the mean of its divisors is an integer number (13626136386).

Almost surely, 2^45420454615 is an apocalyptic number.

45420454615 is a deficient number, since it is larger than the sum of its proper divisors (9084090929).

45420454615 is an equidigital number, since it uses as much as digits as its factorization.

45420454615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9084090928.

The product of its (nonzero) digits is 384000, while the sum is 40.

The spelling of 45420454615 in words is "forty-five billion, four hundred twenty million, four hundred fifty-four thousand, six hundred fifteen".