979066709640 has 48 divisors (see below), whose sum is σ = 3181966807500. Its totient is φ = 261084455808.

The previous prime is 979066709639. The next prime is 979066709671. The reversal of 979066709640 is 46907660979.

It can be written as a sum of positive squares in 2 ways, for example, as 939321502596 + 39745207044 = 969186^2 + 199362^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1359814515 + ... + 1359815234.

Almost surely, 2^979066709640 is an apocalyptic number.

979066709640 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

979066709640 is an abundant number, since it is smaller than the sum of its proper divisors (2202900097860).

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

979066709640 is a wasteful number, since it uses less digits than its factorization.

979066709640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2719629766 (or 2719629759 counting only the distinct ones).

The product of its (nonzero) digits is 30862944, while the sum is 63.

The spelling of 979066709640 in words is "nine hundred seventy-nine billion, sixty-six million, seven hundred nine thousand, six hundred forty".