680812416 has 48 divisors (see below), whose sum is σ = 1959111960. Its totient is φ = 226937088.

The previous prime is 680812373. The next prime is 680812463. The reversal of 680812416 is 614218086.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 294340 + ... + 296643.

Almost surely, 2^680812416 is an apocalyptic number.

It is an amenable number.

680812416 is an abundant number, since it is smaller than the sum of its proper divisors (1278299544).

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

680812416 is a wasteful number, since it uses less digits than its factorization.

680812416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591003 (or 590988 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 680812416 is about 26092.3823366131. The cubic root of 680812416 is about 879.7159965073.

The spelling of 680812416 in words is "six hundred eighty million, eight hundred twelve thousand, four hundred sixteen".