7873976766 has 32 divisors (see below), whose sum is σ = 15917875200. Its totient is φ = 2596384800.

The previous prime is 7873976753. The next prime is 7873976779. The reversal of 7873976766 is 6676793787.

It is an interprime number because it is at equal distance from previous prime (7873976753) and next prime (7873976779).

It is a super-2 number, since 2×7873976766² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7873976697 and 7873976706.

It is a congruent number.

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, 769995 + ... + 780153.

It is an arithmetic number, because the mean of its divisors is an integer number (497433600).

Almost surely, 2^7873976766 is an apocalyptic number.

7873976766 is an abundant number, since it is smaller than the sum of its proper divisors (8043898434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7873976766 is a wasteful number, since it uses less digits than its factorization.

7873976766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11544.

The product of its digits is 112021056, while the sum is 66.

The square root of 7873976766 is about 88735.4312887473. The cubic root of 7873976766 is about 1989.4424307635.

The spelling of 7873976766 in words is "seven billion, eight hundred seventy-three million, nine hundred seventy-six thousand, seven hundred sixty-six".