779954672680 has 128 divisors (see below), whose sum is σ = 1827654554880. Its totient is φ = 299336970240.

The previous prime is 779954672663. The next prime is 779954672687. The reversal of 779954672680 is 86276459977.

It is a happy number.

779954672680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (779954672687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33815712 + ... + 33838768.

It is an arithmetic number, because the mean of its divisors is an integer number (14278551210).

Almost surely, 2^779954672680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 779954672680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (913827277440).

779954672680 is an abundant number, since it is smaller than the sum of its proper divisors (1047699882200).

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

779954672680 is a wasteful number, since it uses less digits than its factorization.

779954672680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23459 (or 23455 counting only the distinct ones).

The product of its (nonzero) digits is 320060160, while the sum is 70.

The spelling of 779954672680 in words is "seven hundred seventy-nine billion, nine hundred fifty-four million, six hundred seventy-two thousand, six hundred eighty".