45444539923 has 2 divisors, whose sum is σ = 45444539924. Its totient is φ = 45444539922.

The previous prime is 45444539887. The next prime is 45444539957. The reversal of 45444539923 is 32993544454.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45444539923 is a prime.

It is not a weakly prime, because it can be changed into another prime (45444539963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22722269961 + 22722269962.

It is an arithmetic number, because the mean of its divisors is an integer number (22722269962).

Almost surely, 2^45444539923 is an apocalyptic number.

45444539923 is a deficient number, since it is larger than the sum of its proper divisors (1).

45444539923 is an equidigital number, since it uses as much as digits as its factorization.

45444539923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9331200, while the sum is 52.

The spelling of 45444539923 in words is "forty-five billion, four hundred forty-four million, five hundred thirty-nine thousand, nine hundred twenty-three".