12346802478 has 96 divisors (see below), whose sum is σ = 27797521440. Its totient is φ = 3958606080.

The previous prime is 12346802473. The next prime is 12346802491. The reversal of 12346802478 is 87420864321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12346802473) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11549328 + ... + 11550396.

It is an arithmetic number, because the mean of its divisors is an integer number (289557515).

Almost surely, 2^12346802478 is an apocalyptic number.

12346802478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12346802478 is an abundant number, since it is smaller than the sum of its proper divisors (15450718962).

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

12346802478 is a wasteful number, since it uses less digits than its factorization.

12346802478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 12346802478 in words is "twelve billion, three hundred forty-six million, eight hundred two thousand, four hundred seventy-eight".