12885433029 has 18 divisors (see below), whose sum is σ = 21651034470. Its totient is φ = 7363104336.

The previous prime is 12885432997. The next prime is 12885433031. The reversal of 12885433029 is 92033458821.

12885433029 is a `hidden beast` number, since 1 + 2 + 88 + 543 + 3 + 0 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7010210529 + 5875222500 = 83727^2 + 76650^2 .

It is not a de Polignac number, because 12885433029 - 2⁵ = 12885432997 is a prime.

It is a super-2 number, since 2×12885433029² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12885433079) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14608894 + ... + 14609775.

Almost surely, 2^12885433029 is an apocalyptic number.

It is an amenable number.

12885433029 is a deficient number, since it is larger than the sum of its proper divisors (8765601441).

12885433029 is a wasteful number, since it uses less digits than its factorization.

12885433029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29218689 (or 29218679 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 12885433029 in words is "twelve billion, eight hundred eighty-five million, four hundred thirty-three thousand, twenty-nine".