12812837378 has 48 divisors (see below), whose sum is σ = 23204180160. Its totient is φ = 5277555360.

The previous prime is 12812837377. The next prime is 12812837383. The reversal of 12812837378 is 87373821821.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12812837377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45176 + ... + 166332.

It is an arithmetic number, because the mean of its divisors is an integer number (483420420).

Almost surely, 2^12812837378 is an apocalyptic number.

12812837378 is a deficient number, since it is larger than the sum of its proper divisors (10391342782).

12812837378 is a wasteful number, since it uses less digits than its factorization.

12812837378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121223 (or 121212 counting only the distinct ones).

The product of its digits is 903168, while the sum is 50.

The spelling of 12812837378 in words is "twelve billion, eight hundred twelve million, eight hundred thirty-seven thousand, three hundred seventy-eight".