12878453720 has 32 divisors (see below), whose sum is σ = 31610751120. Its totient is φ = 4683073920.

The previous prime is 12878453711. The next prime is 12878453771. The reversal of 12878453720 is 2735487821.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14634167 + ... + 14635046.

Almost surely, 2^12878453720 is an apocalyptic number.

12878453720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12878453720 is an abundant number, since it is smaller than the sum of its proper divisors (18732297400).

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

12878453720 is a wasteful number, since it uses less digits than its factorization.

12878453720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29269235 (or 29269231 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 47.

The spelling of 12878453720 in words is "twelve billion, eight hundred seventy-eight million, four hundred fifty-three thousand, seven hundred twenty".