7972699766 has 8 divisors (see below), whose sum is σ = 12127487184. Its totient is φ = 3930204040.

The previous prime is 7972699759. The next prime is 7972699769. The reversal of 7972699766 is 6679962797.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 7972699696 and 7972699705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7972699769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28072745 + ... + 28073028.

It is an arithmetic number, because the mean of its divisors is an integer number (1515935898).

Almost surely, 2^7972699766 is an apocalyptic number.

7972699766 is a deficient number, since it is larger than the sum of its proper divisors (4154787418).

7972699766 is a wasteful number, since it uses less digits than its factorization.

7972699766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56145846.

The product of its digits is 108020304, while the sum is 68.

The square root of 7972699766 is about 89289.9757307616. The cubic root of 7972699766 is about 1997.7223877258.

The spelling of 7972699766 in words is "seven billion, nine hundred seventy-two million, six hundred ninety-nine thousand, seven hundred sixty-six".