12785958464 has 14 divisors (see below), whose sum is σ = 25372136454. Its totient is φ = 6392979200.

The previous prime is 12785958461. The next prime is 12785958503. The reversal of 12785958464 is 46485958721.

It can be written as a sum of positive squares in only one way, i.e., 7772185600 + 5013772864 = 88160^2 + 70808^2 .

It is not an unprimeable number, because it can be changed into a prime (12785958461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99890237 + ... + 99890364.

It is an arithmetic number, because the mean of its divisors is an integer number (1812295461).

Almost surely, 2^12785958464 is an apocalyptic number.

It is an amenable number.

12785958464 is a deficient number, since it is larger than the sum of its proper divisors (12586177990).

12785958464 is an equidigital number, since it uses as much as digits as its factorization.

12785958464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199780613 (or 199780603 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 59.

The spelling of 12785958464 in words is "twelve billion, seven hundred eighty-five million, nine hundred fifty-eight thousand, four hundred sixty-four".