12578033398 has 32 divisors (see below), whose sum is σ = 21878304768. Its totient is φ = 5312126400.

The previous prime is 12578033333. The next prime is 12578033401. The reversal of 12578033398 is 89333087521.

It is a super-2 number, since 2×12578033398² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264138 + ... + 308098.

It is an arithmetic number, because the mean of its divisors is an integer number (683697024).

Almost surely, 2^12578033398 is an apocalyptic number.

12578033398 is a deficient number, since it is larger than the sum of its proper divisors (9300271370).

12578033398 is a wasteful number, since it uses less digits than its factorization.

12578033398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44268.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 12578033398 in words is "twelve billion, five hundred seventy-eight million, thirty-three thousand, three hundred ninety-eight".