12269898457 has 4 divisors (see below), whose sum is σ = 12363561936. Its totient is φ = 12176234980.

The previous prime is 12269898409. The next prime is 12269898467. The reversal of 12269898457 is 75489896221.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12269898457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12269898395 and 12269898404.

It is not an unprimeable number, because it can be changed into a prime (12269898467) 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, 46831543 + ... + 46831804.

It is an arithmetic number, because the mean of its divisors is an integer number (3090890484).

Almost surely, 2^12269898457 is an apocalyptic number.

It is an amenable number.

12269898457 is a deficient number, since it is larger than the sum of its proper divisors (93663479).

12269898457 is an equidigital number, since it uses as much as digits as its factorization.

12269898457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93663478.

The product of its digits is 17418240, while the sum is 61.

The spelling of 12269898457 in words is "twelve billion, two hundred sixty-nine million, eight hundred ninety-eight thousand, four hundred fifty-seven".