12879035478 has 24 divisors (see below), whose sum is σ = 28938080808. Its totient is φ = 4293011664.

The previous prime is 12879035431. The next prime is 12879035489. The reversal of 12879035478 is 87453097821.

It is a happy number.

12879035478 is a `hidden beast` number, since 1 + 2 + 8 + 7 + 90 + 3 + 547 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13249551 + ... + 13250522.

It is an arithmetic number, because the mean of its divisors is an integer number (1205753367).

Almost surely, 2^12879035478 is an apocalyptic number.

12879035478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12879035478 is an abundant number, since it is smaller than the sum of its proper divisors (16059045330).

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

12879035478 is an equidigital number, since it uses as much as digits as its factorization.

12879035478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26500090 (or 26500078 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 12879035478 in words is "twelve billion, eight hundred seventy-nine million, thirty-five thousand, four hundred seventy-eight".