979787278796 has 12 divisors (see below), whose sum is σ = 1714636440048. Its totient is φ = 489891153072.

The previous prime is 979787278793. The next prime is 979787278817. The reversal of 979787278796 is 697872787979.

It is a happy number.

It is a super-2 number, since 2×979787278796² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (979787278793) 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, 483290 + ... + 1480926.

It is an arithmetic number, because the mean of its divisors is an integer number (142886370004).

Almost surely, 2^979787278796 is an apocalyptic number.

It is an amenable number.

979787278796 is a deficient number, since it is larger than the sum of its proper divisors (734849161252).

979787278796 is a wasteful number, since it uses less digits than its factorization.

979787278796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243168 (or 1243166 counting only the distinct ones).

The product of its digits is 9409768704, while the sum is 86.

The spelling of 979787278796 in words is "nine hundred seventy-nine billion, seven hundred eighty-seven million, two hundred seventy-eight thousand, seven hundred ninety-six".