12978803737 has 8 divisors (see below), whose sum is σ = 12998462400. Its totient is φ = 12959161200.

The previous prime is 12978803713. The next prime is 12978803741. The reversal of 12978803737 is 73730887921.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12978803737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12978803137) 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, 3504987 + ... + 3508687.

It is an arithmetic number, because the mean of its divisors is an integer number (1624807800).

Almost surely, 2^12978803737 is an apocalyptic number.

It is an amenable number.

12978803737 is a deficient number, since it is larger than the sum of its proper divisors (19658663).

12978803737 is a wasteful number, since it uses less digits than its factorization.

12978803737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8063.

The product of its (nonzero) digits is 3556224, while the sum is 55.

The spelling of 12978803737 in words is "twelve billion, nine hundred seventy-eight million, eight hundred three thousand, seven hundred thirty-seven".