45391739423 has 32 divisors (see below), whose sum is σ = 50965770240. Its totient is φ = 40174824960.

The previous prime is 45391739399. The next prime is 45391739443. The reversal of 45391739423 is 32493719354.

It is a cyclic number.

It is not a de Polignac number, because 45391739423 - 2¹² = 45391735327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45391739443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33204686 + ... + 33206052.

It is an arithmetic number, because the mean of its divisors is an integer number (1592680320).

Almost surely, 2^45391739423 is an apocalyptic number.

45391739423 is a deficient number, since it is larger than the sum of its proper divisors (5574030817).

45391739423 is a wasteful number, since it uses less digits than its factorization.

45391739423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087.

The product of its digits is 2449440, while the sum is 50.

The spelling of 45391739423 in words is "forty-five billion, three hundred ninety-one million, seven hundred thirty-nine thousand, four hundred twenty-three".