12803777409 has 8 divisors (see below), whose sum is σ = 18075921120. Its totient is φ = 8033742656.

The previous prime is 12803777401. The next prime is 12803777411. The reversal of 12803777409 is 90477730821.

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 12803777409 - 2³ = 12803777401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12803777401) 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, 125527179 + ... + 125527280.

It is an arithmetic number, because the mean of its divisors is an integer number (2259490140).

Almost surely, 2^12803777409 is an apocalyptic number.

It is an amenable number.

12803777409 is a deficient number, since it is larger than the sum of its proper divisors (5272143711).

12803777409 is a wasteful number, since it uses less digits than its factorization.

12803777409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251054479.

The product of its (nonzero) digits is 592704, while the sum is 48.

The spelling of 12803777409 in words is "twelve billion, eight hundred three million, seven hundred seventy-seven thousand, four hundred nine".