12578033446 has 16 divisors (see below), whose sum is σ = 20584693008. Its totient is φ = 5716605600.

The previous prime is 12578033443. The next prime is 12578033449. The reversal of 12578033446 is 64433087521.

It is an interprime number because it is at equal distance from previous prime (12578033443) and next prime (12578033449).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12578033443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185956 + ... + 244408.

It is an arithmetic number, because the mean of its divisors is an integer number (1286543313).

Almost surely, 2^12578033446 is an apocalyptic number.

12578033446 is a deficient number, since it is larger than the sum of its proper divisors (8006659562).

12578033446 is a wasteful number, since it uses less digits than its factorization.

12578033446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68247.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 12578033446 in words is "twelve billion, five hundred seventy-eight million, thirty-three thousand, four hundred forty-six".