7962779871 has 16 divisors (see below), whose sum is σ = 11799669600. Its totient is φ = 5307188544.

The previous prime is 7962779843. The next prime is 7962779941. The reversal of 7962779871 is 1789772697.

It is not a de Polignac number, because 7962779871 - 2⁶ = 7962779807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7962779799 and 7962779808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7962779801) 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, 79315 + ... + 149051.

It is an arithmetic number, because the mean of its divisors is an integer number (737479350).

Almost surely, 2^7962779871 is an apocalyptic number.

7962779871 is a deficient number, since it is larger than the sum of its proper divisors (3836889729).

7962779871 is a wasteful number, since it uses less digits than its factorization.

7962779871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73975 (or 73969 counting only the distinct ones).

The product of its digits is 18670176, while the sum is 63.

The square root of 7962779871 is about 89234.4096803470. The cubic root of 7962779871 is about 1996.8934999102.

The spelling of 7962779871 in words is "seven billion, nine hundred sixty-two million, seven hundred seventy-nine thousand, eight hundred seventy-one".