12697720098 has 64 divisors (see below), whose sum is σ = 29249372160. Its totient is φ = 3599756352.

The previous prime is 12697720097. The next prime is 12697720099. The reversal of 12697720098 is 89002779621.

It is an interprime number because it is at equal distance from previous prime (12697720097) and next prime (12697720099).

It is a super-2 number, since 2×12697720098² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12697720098.

It is not an unprimeable number, because it can be changed into a prime (12697720097) 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 31 ways as a sum of consecutive naturals, for example, 4409023 + ... + 4411901.

It is an arithmetic number, because the mean of its divisors is an integer number (457021440).

Almost surely, 2^12697720098 is an apocalyptic number.

12697720098 is an abundant number, since it is smaller than the sum of its proper divisors (16551652062).

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

12697720098 is a wasteful number, since it uses less digits than its factorization.

12697720098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3671.

The product of its (nonzero) digits is 762048, while the sum is 51.

The spelling of 12697720098 in words is "twelve billion, six hundred ninety-seven million, seven hundred twenty thousand, ninety-eight".