12357777889 has 8 divisors (see below), whose sum is σ = 12756204648. Its totient is φ = 11962742400.

The previous prime is 12357777871. The next prime is 12357777899. The reversal of 12357777889 is 98877775321.

It can be written as a sum of positive squares in 4 ways, for example, as 3600000000 + 8757777889 = 60000^2 + 93583^2 .

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-12357777889 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 12357777889.

It is not an unprimeable number, because it can be changed into a prime (12357777829) 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, 840412 + ... + 854989.

It is an arithmetic number, because the mean of its divisors is an integer number (1594525581).

Almost surely, 2^12357777889 is an apocalyptic number.

It is an amenable number.

12357777889 is a deficient number, since it is larger than the sum of its proper divisors (398426759).

12357777889 is a wasteful number, since it uses less digits than its factorization.

12357777889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695635.

The product of its digits is 41489280, while the sum is 64.

The spelling of 12357777889 in words is "twelve billion, three hundred fifty-seven million, seven hundred seventy-seven thousand, eight hundred eighty-nine".