79631992945 has 16 divisors (see below), whose sum is σ = 96081281280. Its totient is φ = 63357686784.

The previous prime is 79631992933. The next prime is 79631993033. The reversal of 79631992945 is 54929913697.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 79631992945 - 2¹¹ = 79631990897 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, 898129 + ... + 982801.

It is an arithmetic number, because the mean of its divisors is an integer number (6005080080).

Almost surely, 2^79631992945 is an apocalyptic number.

It is an amenable number.

79631992945 is a deficient number, since it is larger than the sum of its proper divisors (16449288335).

79631992945 is a wasteful number, since it uses less digits than its factorization.

79631992945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85704.

The product of its digits is 33067440, while the sum is 64.

The spelling of 79631992945 in words is "seventy-nine billion, six hundred thirty-one million, nine hundred ninety-two thousand, nine hundred forty-five".