12591777803 has 16 divisors (see below), whose sum is σ = 14122429440. Its totient is φ = 11126095200.

The previous prime is 12591777799. The next prime is 12591777833. The reversal of 12591777803 is 30877719521.

It is not a de Polignac number, because 12591777803 - 2² = 12591777799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12591777833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387728 + ... + 418946.

It is an arithmetic number, because the mean of its divisors is an integer number (882651840).

Almost surely, 2^12591777803 is an apocalyptic number.

12591777803 is a deficient number, since it is larger than the sum of its proper divisors (1530651637).

12591777803 is a wasteful number, since it uses less digits than its factorization.

12591777803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32258.

The product of its (nonzero) digits is 740880, while the sum is 50.

The spelling of 12591777803 in words is "twelve billion, five hundred ninety-one million, seven hundred seventy-seven thousand, eight hundred three".