680119091 has 2 divisors, whose sum is σ = 680119092. Its totient is φ = 680119090.

The previous prime is 680119031. The next prime is 680119123. The reversal of 680119091 is 190911086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 680119091 - 2²² = 675924787 is a prime.

It is not a weakly prime, because it can be changed into another prime (680119031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340059545 + 340059546.

It is an arithmetic number, because the mean of its divisors is an integer number (340059546).

Almost surely, 2^680119091 is an apocalyptic number.

680119091 is a deficient number, since it is larger than the sum of its proper divisors (1).

680119091 is an equidigital number, since it uses as much as digits as its factorization.

680119091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 680119091 is about 26079.0929865285. The cubic root of 680119091 is about 879.4172670079.

The spelling of 680119091 in words is "six hundred eighty million, one hundred nineteen thousand, ninety-one".