45739811939 has 4 divisors (see below), whose sum is σ = 45744852360. Its totient is φ = 45734771520.

The previous prime is 45739811911. The next prime is 45739811947. The reversal of 45739811939 is 93911893754.

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

It is a cyclic number.

It is not a de Polignac number, because 45739811939 - 2²⁰ = 45738763363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45739211939) 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, 2506574 + ... + 2524755.

It is an arithmetic number, because the mean of its divisors is an integer number (11436213090).

Almost surely, 2^45739811939 is an apocalyptic number.

45739811939 is a deficient number, since it is larger than the sum of its proper divisors (5040421).

45739811939 is an equidigital number, since it uses as much as digits as its factorization.

45739811939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5040420.

The product of its digits is 7348320, while the sum is 59.

The spelling of 45739811939 in words is "forty-five billion, seven hundred thirty-nine million, eight hundred eleven thousand, nine hundred thirty-nine".