680140776 has 96 divisors (see below), whose sum is σ = 1988059680. Its totient is φ = 193334400.

The previous prime is 680140729. The next prime is 680140823. The reversal of 680140776 is 677041086.

It is an interprime number because it is at equal distance from previous prime (680140729) and next prime (680140823).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 246766 + ... + 249506.

It is an arithmetic number, because the mean of its divisors is an integer number (20708955).

Almost surely, 2^680140776 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 680140776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (994029840).

680140776 is an abundant number, since it is smaller than the sum of its proper divisors (1307918904).

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

680140776 is a wasteful number, since it uses less digits than its factorization.

680140776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975 (or 2964 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 680140776 is about 26079.5087377044. The cubic root of 680140776 is about 879.4266133910.

The spelling of 680140776 in words is "six hundred eighty million, one hundred forty thousand, seven hundred seventy-six".