45193571779 has 16 divisors (see below), whose sum is σ = 48646080000. Its totient is φ = 41850769824.

The previous prime is 45193571713. The next prime is 45193571803. The reversal of 45193571779 is 97717539154.

It is a happy number.

It is not a de Polignac number, because 45193571779 - 2²³ = 45185183171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45193571279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679972 + ... + 743470.

It is an arithmetic number, because the mean of its divisors is an integer number (3040380000).

Almost surely, 2^45193571779 is an apocalyptic number.

45193571779 is a deficient number, since it is larger than the sum of its proper divisors (3452508221).

45193571779 is a wasteful number, since it uses less digits than its factorization.

45193571779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64362.

The product of its digits is 8334900, while the sum is 58.

The spelling of 45193571779 in words is "forty-five billion, one hundred ninety-three million, five hundred seventy-one thousand, seven hundred seventy-nine".