780804138597 has 32 divisors (see below), whose sum is σ = 1257658060800. Its totient is φ = 420922329408.

The previous prime is 780804138533. The next prime is 780804138599. The reversal of 780804138597 is 795831408087.

It is not a de Polignac number, because 780804138597 - 2⁶ = 780804138533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 780804138597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780804138599) 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, 3998578 + ... + 4189299.

It is an arithmetic number, because the mean of its divisors is an integer number (39301814400).

Almost surely, 2^780804138597 is an apocalyptic number.

It is an amenable number.

780804138597 is a deficient number, since it is larger than the sum of its proper divisors (476853922203).

780804138597 is a wasteful number, since it uses less digits than its factorization.

780804138597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8188145.

The product of its (nonzero) digits is 13547520, while the sum is 60.

The spelling of 780804138597 in words is "seven hundred eighty billion, eight hundred four million, one hundred thirty-eight thousand, five hundred ninety-seven".