79982671772 has 6 divisors (see below), whose sum is σ = 139969675608. Its totient is φ = 39991335884.

The previous prime is 79982671751. The next prime is 79982671829. The reversal of 79982671772 is 27717628997.

It is a junction number, because it is equal to n+sod(n) for n = 79982671699 and 79982671708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9997833968 + ... + 9997833975.

It is an arithmetic number, because the mean of its divisors is an integer number (23328279268).

Almost surely, 2^79982671772 is an apocalyptic number.

It is an amenable number.

79982671772 is a deficient number, since it is larger than the sum of its proper divisors (59987003836).

79982671772 is a wasteful number, since it uses less digits than its factorization.

79982671772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19995667947 (or 19995667945 counting only the distinct ones).

The product of its digits is 37340352, while the sum is 65.

The spelling of 79982671772 in words is "seventy-nine billion, nine hundred eighty-two million, six hundred seventy-one thousand, seven hundred seventy-two".