12378152862 has 80 divisors (see below), whose sum is σ = 28306856160. Its totient is φ = 4041430848.

The previous prime is 12378152861. The next prime is 12378152867. The reversal of 12378152862 is 26825187321.

12378152862 is a `hidden beast` number, since 12 + 37 + 81 + 528 + 6 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12378152861) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9383839 + ... + 9385157.

It is an arithmetic number, because the mean of its divisors is an integer number (353835702).

Almost surely, 2^12378152862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12378152862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14153428080).

12378152862 is an abundant number, since it is smaller than the sum of its proper divisors (15928703298).

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

12378152862 is a wasteful number, since it uses less digits than its factorization.

12378152862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479 (or 2470 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The spelling of 12378152862 in words is "twelve billion, three hundred seventy-eight million, one hundred fifty-two thousand, eight hundred sixty-two".