779469830720 has 224 divisors, whose sum is σ = 2244687261696. Its totient is φ = 252025804800.

The previous prime is 779469830681. The next prime is 779469830749. The reversal of 779469830720 is 27038964977.

It is a tau number, because it is divible by the number of its divisors (224).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3551375 + ... + 3764465.

Almost surely, 2^779469830720 is an apocalyptic number.

779469830720 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 779469830720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1122343630848).

779469830720 is an abundant number, since it is smaller than the sum of its proper divisors (1465217430976).

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

779469830720 is a wasteful number, since it uses less digits than its factorization.

779469830720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213209 (or 213199 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 62.

The spelling of 779469830720 in words is "seven hundred seventy-nine billion, four hundred sixty-nine million, eight hundred thirty thousand, seven hundred twenty".