12402078829 has 36 divisors (see below), whose sum is σ = 15460199712. Its totient is φ = 9744086160.

The previous prime is 12402078823. The next prime is 12402078859. The reversal of 12402078829 is 92887020421.

It is not a de Polignac number, because 12402078829 - 2⁵ = 12402078797 is a prime.

It is a super-2 number, since 2×12402078829² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402078823) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2425894 + ... + 2431000.

It is an arithmetic number, because the mean of its divisors is an integer number (429449992).

Almost surely, 2^12402078829 is an apocalyptic number.

12402078829 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12402078829 is a deficient number, since it is larger than the sum of its proper divisors (3058120883).

12402078829 is an equidigital number, since it uses as much as digits as its factorization.

12402078829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5214 (or 5164 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 12402078829 in words is "twelve billion, four hundred two million, seventy-eight thousand, eight hundred twenty-nine".