680987135379 has 32 divisors (see below), whose sum is σ = 967712581440. Its totient is φ = 424481513472.

The previous prime is 680987135347. The next prime is 680987135431. The reversal of 680987135379 is 973531789086.

It is not a de Polignac number, because 680987135379 - 2⁵ = 680987135347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (680987130379) 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, 11413677 + ... + 11473185.

It is an arithmetic number, because the mean of its divisors is an integer number (30241018170).

Almost surely, 2^680987135379 is an apocalyptic number.

680987135379 is a deficient number, since it is larger than the sum of its proper divisors (286725446061).

680987135379 is a wasteful number, since it uses less digits than its factorization.

680987135379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60999.

The product of its (nonzero) digits is 68584320, while the sum is 66.

The spelling of 680987135379 in words is "six hundred eighty billion, nine hundred eighty-seven million, one hundred thirty-five thousand, three hundred seventy-nine".