12017193738 has 16 divisors (see below), whose sum is σ = 26219331936. Its totient is φ = 3641573840.

The previous prime is 12017193737. The next prime is 12017193757. The reversal of 12017193738 is 83739171021.

It is a self number, because there is not a number n which added to its sum of digits gives 12017193738.

It is not an unprimeable number, because it can be changed into a prime (12017193737) 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, 91039281 + ... + 91039412.

It is an arithmetic number, because the mean of its divisors is an integer number (1638708246).

Almost surely, 2^12017193738 is an apocalyptic number.

12017193738 is an abundant number, since it is smaller than the sum of its proper divisors (14202138198).

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

12017193738 is a wasteful number, since it uses less digits than its factorization.

12017193738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182078709.

The product of its (nonzero) digits is 63504, while the sum is 42.

The spelling of 12017193738 in words is "twelve billion, seventeen million, one hundred ninety-three thousand, seven hundred thirty-eight".