12850001969 has 4 divisors (see below), whose sum is σ = 14685716544. Its totient is φ = 11014287396.

The previous prime is 12850001947. The next prime is 12850001971. The reversal of 12850001969 is 96910005821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96910005821 = 433 ⋅223810637.

It is not a de Polignac number, because 12850001969 - 2⁸ = 12850001713 is a prime.

It is a super-2 number, since 2×12850001969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12850001999) 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, 917857277 + ... + 917857290.

It is an arithmetic number, because the mean of its divisors is an integer number (3671429136).

Almost surely, 2^12850001969 is an apocalyptic number.

It is an amenable number.

12850001969 is a deficient number, since it is larger than the sum of its proper divisors (1835714575).

12850001969 is an equidigital number, since it uses as much as digits as its factorization.

12850001969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835714574.

The product of its (nonzero) digits is 38880, while the sum is 41.

The spelling of 12850001969 in words is "twelve billion, eight hundred fifty million, one thousand, nine hundred sixty-nine".