12877808658 has 64 divisors (see below), whose sum is σ = 30570486912. Its totient is φ = 3565025280.

The previous prime is 12877808653. The next prime is 12877808681. The reversal of 12877808658 is 85680877821.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12877808653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5860 + ... + 160592.

It is an arithmetic number, because the mean of its divisors is an integer number (477663858).

Almost surely, 2^12877808658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12877808658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15285243456).

12877808658 is an abundant number, since it is smaller than the sum of its proper divisors (17692678254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12877808658 is a wasteful number, since it uses less digits than its factorization.

12877808658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154859.

The product of its (nonzero) digits is 12042240, while the sum is 60.

The spelling of 12877808658 in words is "twelve billion, eight hundred seventy-seven million, eight hundred eight thousand, six hundred fifty-eight".