12127747698 has 24 divisors (see below), whose sum is σ = 28665585936. Its totient is φ = 3675075000.

The previous prime is 12127747663. The next prime is 12127747699. The reversal of 12127747698 is 89674772121.

12127747698 is a `hidden beast` number, since 1 + 2 + 12 + 77 + 476 + 98 = 666.

It is not an unprimeable number, because it can be changed into a prime (12127747699) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30625428 + ... + 30625823.

It is an arithmetic number, because the mean of its divisors is an integer number (1194399414).

Almost surely, 2^12127747698 is an apocalyptic number.

12127747698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12127747698 is an abundant number, since it is smaller than the sum of its proper divisors (16537838238).

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

12127747698 is a wasteful number, since it uses less digits than its factorization.

12127747698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61251270 (or 61251267 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The spelling of 12127747698 in words is "twelve billion, one hundred twenty-seven million, seven hundred forty-seven thousand, six hundred ninety-eight".