12567404346 has 128 divisors (see below), whose sum is σ = 30710845440. Its totient is φ = 3348864000.

The previous prime is 12567404323. The next prime is 12567404347. The reversal of 12567404346 is 64340476521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12567404298 and 12567404307.

It is not an unprimeable number, because it can be changed into a prime (12567404347) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19423795 + ... + 19424441.

It is an arithmetic number, because the mean of its divisors is an integer number (239928480).

Almost surely, 2^12567404346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12567404346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15355422720).

12567404346 is an abundant number, since it is smaller than the sum of its proper divisors (18143441094).

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

12567404346 is a wasteful number, since it uses less digits than its factorization.

12567404346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020.

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 12567404346 in words is "twelve billion, five hundred sixty-seven million, four hundred four thousand, three hundred forty-six".