680789511 has 6 divisors (see below), whose sum is σ = 983362640. Its totient is φ = 453859668.

The previous prime is 680789509. The next prime is 680789519. The reversal of 680789511 is 115987086.

680789511 is a `hidden beast` number, since 68 + 0 + 78 + 9 + 511 = 666.

It is not a de Polignac number, because 680789511 - 2¹ = 680789509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680789519) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37821631 + ... + 37821648.

Almost surely, 2^680789511 is an apocalyptic number.

680789511 is a deficient number, since it is larger than the sum of its proper divisors (302573129).

680789511 is a wasteful number, since it uses less digits than its factorization.

680789511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75643285 (or 75643282 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The square root of 680789511 is about 26091.9434117124. The cubic root of 680789511 is about 879.7061307840.

The spelling of 680789511 in words is "six hundred eighty million, seven hundred eighty-nine thousand, five hundred eleven".