45273392779 has 2 divisors, whose sum is σ = 45273392780. Its totient is φ = 45273392778.

The previous prime is 45273392771. The next prime is 45273392797. The reversal of 45273392779 is 97729337254.

It is a happy number.

Together with next prime (45273392797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45273392779 - 2³ = 45273392771 is a prime.

It is not a weakly prime, because it can be changed into another prime (45273392771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22636696389 + 22636696390.

It is an arithmetic number, because the mean of its divisors is an integer number (22636696390).

Almost surely, 2^45273392779 is an apocalyptic number.

45273392779 is a deficient number, since it is larger than the sum of its proper divisors (1).

45273392779 is an equidigital number, since it uses as much as digits as its factorization.

45273392779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20003760, while the sum is 58.

The spelling of 45273392779 in words is "forty-five billion, two hundred seventy-three million, three hundred ninety-two thousand, seven hundred seventy-nine".