12377878899 has 16 divisors (see below), whose sum is σ = 16708620960. Its totient is φ = 8149743360.

The previous prime is 12377878889. The next prime is 12377878913. The reversal of 12377878899 is 99887877321.

It is not a de Polignac number, because 12377878899 - 2⁷ = 12377878771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12377878829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207729 + ... + 260589.

It is an arithmetic number, because the mean of its divisors is an integer number (1044288810).

Almost surely, 2^12377878899 is an apocalyptic number.

12377878899 is a deficient number, since it is larger than the sum of its proper divisors (4330742061).

12377878899 is an equidigital number, since it uses as much as digits as its factorization.

12377878899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53830.

The product of its digits is 85349376, while the sum is 69.

The spelling of 12377878899 in words is "twelve billion, three hundred seventy-seven million, eight hundred seventy-eight thousand, eight hundred ninety-nine".