12388810447851 has 8 divisors (see below), whose sum is σ = 16644508693824. Its totient is φ = 8196159583560.

The previous prime is 12388810447847. The next prime is 12388810447873. The reversal of 12388810447851 is 15874401888321.

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

It is not a de Polignac number, because 12388810447851 - 2² = 12388810447847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12388810447151) 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, 15761844961 + ... + 15761845746.

It is an arithmetic number, because the mean of its divisors is an integer number (2080563586728).

Almost surely, 2^{12388810447851} is an apocalyptic number.

12388810447851 is a deficient number, since it is larger than the sum of its proper divisors (4255698245973).

12388810447851 is a wasteful number, since it uses less digits than its factorization.

12388810447851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31523690841.

The product of its (nonzero) digits is 13762560, while the sum is 60.

The spelling of 12388810447851 in words is "twelve trillion, three hundred eighty-eight billion, eight hundred ten million, four hundred forty-seven thousand, eight hundred fifty-one".