5439637945 has 16 divisors (see below), whose sum is σ = 7462264320. Its totient is φ = 3728942784.

The previous prime is 5439637873. The next prime is 5439637961. The reversal of 5439637945 is 5497369345.

It is not a de Polignac number, because 5439637945 - 2⁷ = 5439637817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108864 + ... + 150766.

It is an arithmetic number, because the mean of its divisors is an integer number (466391520).

Almost surely, 2^5439637945 is an apocalyptic number.

It is an amenable number.

5439637945 is a deficient number, since it is larger than the sum of its proper divisors (2022626375).

5439637945 is a wasteful number, since it uses less digits than its factorization.

5439637945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45624.

The product of its digits is 12247200, while the sum is 55.

The square root of 5439637945 is about 73753.9012188508. The cubic root of 5439637945 is about 1758.6928509838.

The spelling of 5439637945 in words is "five billion, four hundred thirty-nine million, six hundred thirty-seven thousand, nine hundred forty-five".