12381740857 has 8 divisors (see below), whose sum is σ = 12921284160. Its totient is φ = 11842298160.

The previous prime is 12381740851. The next prime is 12381740869. The reversal of 12381740857 is 75804718321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12381740857 - 2¹⁵ = 12381708089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12381740851) 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, 338194 + ... + 373012.

It is an arithmetic number, because the mean of its divisors is an integer number (1615160520).

Almost surely, 2^12381740857 is an apocalyptic number.

It is an amenable number.

12381740857 is a deficient number, since it is larger than the sum of its proper divisors (539543303).

12381740857 is a wasteful number, since it uses less digits than its factorization.

12381740857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50303.

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 12381740857 in words is "twelve billion, three hundred eighty-one million, seven hundred forty thousand, eight hundred fifty-seven".