780934993879 has 2 divisors, whose sum is σ = 780934993880. Its totient is φ = 780934993878.

The previous prime is 780934993841. The next prime is 780934993903. The reversal of 780934993879 is 978399439087.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 780934993879 - 2³⁵ = 746575255511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (780934993829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390467496939 + 390467496940.

It is an arithmetic number, because the mean of its divisors is an integer number (390467496940).

Almost surely, 2^780934993879 is an apocalyptic number.

780934993879 is a deficient number, since it is larger than the sum of its proper divisors (1).

780934993879 is an equidigital number, since it uses as much as digits as its factorization.

780934993879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740710656, while the sum is 76.

The spelling of 780934993879 in words is "seven hundred eighty billion, nine hundred thirty-four million, nine hundred ninety-three thousand, eight hundred seventy-nine".