12276850815 has 24 divisors (see below), whose sum is σ = 22531633488. Its totient is φ = 6162497280.

The previous prime is 12276850813. The next prime is 12276850843. The reversal of 12276850815 is 51805867221.

12276850815 is a `hidden beast` number, since 122 + 7 + 6 + 8 + 508 + 15 = 666.

It is not a de Polignac number, because 12276850815 - 2¹ = 12276850813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12276850811) 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, 8023321 + ... + 8024850.

It is an arithmetic number, because the mean of its divisors is an integer number (938818062).

Almost surely, 2^12276850815 is an apocalyptic number.

12276850815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12276850815 is a deficient number, since it is larger than the sum of its proper divisors (10254782673).

12276850815 is a wasteful number, since it uses less digits than its factorization.

12276850815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16048199 (or 16048196 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The spelling of 12276850815 in words is "twelve billion, two hundred seventy-six million, eight hundred fifty thousand, eight hundred fifteen".