785256464652587 has 4 divisors (see below), whose sum is σ = 785256877315536. Its totient is φ = 785256051989640.

The previous prime is 785256464652577. The next prime is 785256464652613.

785256464652587 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 a de Polignac number, because none of the positive numbers 2^k-785256464652587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (785256464652577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203463839 + ... + 207287352.

It is an arithmetic number, because the mean of its divisors is an integer number (196314219328884).

Almost surely, 2^{785256464652587} is an apocalyptic number.

785256464652587 is a deficient number, since it is larger than the sum of its proper divisors (412662949).

785256464652587 is a wasteful number, since it uses less digits than its factorization.

785256464652587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412662948.

The product of its digits is 27095040000, while the sum is 80.

The spelling of 785256464652587 in words is "seven hundred eighty-five trillion, two hundred fifty-six billion, four hundred sixty-four million, six hundred fifty-two thousand, five hundred eighty-seven".