780560780 has 96 divisors (see below), whose sum is σ = 1811496960. Its totient is φ = 281226240.

The previous prime is 780560777. The next prime is 780560783. The reversal of 780560780 is 87065087.

It is an interprime number because it is at equal distance from previous prime (780560777) and next prime (780560783).

It is not an unprimeable number, because it can be changed into a prime (780560783) 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, 1085261 + ... + 1085979.

It is an arithmetic number, because the mean of its divisors is an integer number (18869760).

Almost surely, 2^780560780 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 780560780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (905748480).

780560780 is an abundant number, since it is smaller than the sum of its proper divisors (1030936180).

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

780560780 is a wasteful number, since it uses less digits than its factorization.

780560780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 780560780 is about 27938.5178561784. The cubic root of 780560780 is about 920.7369567695.

The spelling of 780560780 in words is "seven hundred eighty million, five hundred sixty thousand, seven hundred eighty".