12381738502 has 32 divisors (see below), whose sum is σ = 21773251584. Its totient is φ = 5169960000.

The previous prime is 12381738451. The next prime is 12381738583. The reversal of 12381738502 is 20583718321.

It is a happy number.

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, 416713 + ... + 445435.

It is an arithmetic number, because the mean of its divisors is an integer number (680414112).

Almost surely, 2^12381738502 is an apocalyptic number.

12381738502 is a deficient number, since it is larger than the sum of its proper divisors (9391513082).

12381738502 is a wasteful number, since it uses less digits than its factorization.

12381738502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29524.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 12381738502 in words is "twelve billion, three hundred eighty-one million, seven hundred thirty-eight thousand, five hundred two".