785897798587 has 4 divisors (see below), whose sum is σ = 857343053016. Its totient is φ = 714452544160.

The previous prime is 785897798537. The next prime is 785897798629.

785897798587 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 785897798587 - 2³¹ = 783750314939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 785897798498 and 785897798507.

It is not an unprimeable number, because it can be changed into a prime (785897798537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35722627198 + ... + 35722627219.

It is an arithmetic number, because the mean of its divisors is an integer number (214335763254).

Almost surely, 2^785897798587 is an apocalyptic number.

785897798587 is a deficient number, since it is larger than the sum of its proper divisors (71445254429).

785897798587 is a wasteful number, since it uses less digits than its factorization.

785897798587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71445254428.

The product of its digits is 19914854400, while the sum is 88.

The spelling of 785897798587 in words is "seven hundred eighty-five billion, eight hundred ninety-seven million, seven hundred ninety-eight thousand, five hundred eighty-seven".