780839938087 has 8 divisors (see below), whose sum is σ = 852785741952. Its totient is φ = 709054193400.

The previous prime is 780839938057. The next prime is 780839938111.

780839938087 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 780839938087 - 2¹¹ = 780839936039 is a prime.

It is a super-2 number, since 2×780839938087² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780839938027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40004589 + ... + 40024102.

It is an arithmetic number, because the mean of its divisors is an integer number (106598217744).

Almost surely, 2^780839938087 is an apocalyptic number.

780839938087 is a deficient number, since it is larger than the sum of its proper divisors (71945803865).

780839938087 is a wasteful number, since it uses less digits than its factorization.

780839938087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80029589.

The product of its (nonzero) digits is 146313216, while the sum is 70.

The spelling of 780839938087 in words is "seven hundred eighty billion, eight hundred thirty-nine million, nine hundred thirty-eight thousand, eighty-seven".