12269429956 has 48 divisors (see below), whose sum is σ = 24972623872. Its totient is φ = 5165596800.

The previous prime is 12269429951. The next prime is 12269429969. The reversal of 12269429956 is 65992496221.

It is a super-2 number, since 2×12269429956² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12269429897 and 12269429906.

It is not an unprimeable number, because it can be changed into a prime (12269429951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1493821 + ... + 1502011.

Almost surely, 2^12269429956 is an apocalyptic number.

It is an amenable number.

12269429956 is an abundant number, since it is smaller than the sum of its proper divisors (12703193916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12269429956 is a wasteful number, since it uses less digits than its factorization.

12269429956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9140 (or 9138 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 55.

It can be divided in two parts, 12269 and 429956, that added together give a square (442225 = 665²).

The spelling of 12269429956 in words is "twelve billion, two hundred sixty-nine million, four hundred twenty-nine thousand, nine hundred fifty-six".