12357778899 has 16 divisors (see below), whose sum is σ = 17223864320. Its totient is φ = 7871834880.

The previous prime is 12357778897. The next prime is 12357778913. The reversal of 12357778899 is 99887775321.

It is not a de Polignac number, because 12357778899 - 2¹ = 12357778897 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (12357778891) 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, 833662 + ... + 848355.

It is an arithmetic number, because the mean of its divisors is an integer number (1076491520).

Almost surely, 2^12357778899 is an apocalyptic number.

12357778899 is a deficient number, since it is larger than the sum of its proper divisors (4866085421).

12357778899 is a wasteful number, since it uses less digits than its factorization.

12357778899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682130.

The product of its digits is 53343360, while the sum is 66.

The spelling of 12357778899 in words is "twelve billion, three hundred fifty-seven million, seven hundred seventy-eight thousand, eight hundred ninety-nine".