780876869472 has 384 divisors, whose sum is σ = 2679778483200. Its totient is φ = 216549531648.

The previous prime is 780876869447. The next prime is 780876869477. The reversal of 780876869472 is 274968678087.

780876869472 is a `hidden beast` number, since 7 + 8 + 0 + 8 + 76 + 86 + 9 + 472 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 780876869472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780876869477) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 96890979 + ... + 96899037.

It is an arithmetic number, because the mean of its divisors is an integer number (6978589800).

Almost surely, 2^780876869472 is an apocalyptic number.

780876869472 is a gapful number since it is divisible by the number (72) 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 780876869472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1339889241600).

780876869472 is an abundant number, since it is smaller than the sum of its proper divisors (1898901613728).

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

780876869472 is a wasteful number, since it uses less digits than its factorization.

780876869472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8555 (or 8541 counting only the distinct ones).

The product of its (nonzero) digits is 455196672, while the sum is 72.

The spelling of 780876869472 in words is "seven hundred eighty billion, eight hundred seventy-six million, eight hundred sixty-nine thousand, four hundred seventy-two".