12698877880 has 64 divisors (see below), whose sum is σ = 30879444960. Its totient is φ = 4672194048.

The previous prime is 12698877871. The next prime is 12698877901. The reversal of 12698877880 is 8877889621.

It is a super-2 number, since 2×12698877880² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104014 + ... + 190306.

Almost surely, 2^12698877880 is an apocalyptic number.

12698877880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12698877880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15439722480).

12698877880 is an abundant number, since it is smaller than the sum of its proper divisors (18180567080).

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

12698877880 is a wasteful number, since it uses less digits than its factorization.

12698877880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86600 (or 86596 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 64.

The spelling of 12698877880 in words is "twelve billion, six hundred ninety-eight million, eight hundred seventy-seven thousand, eight hundred eighty".