12654305698 has 4 divisors (see below), whose sum is σ = 18981458550. Its totient is φ = 6327152848.

The previous prime is 12654305693. The next prime is 12654305717. The reversal of 12654305698 is 89650345621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12324774289 + 329531409 = 111017^2 + 18153^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12654305693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3163576423 + ... + 3163576426.

Almost surely, 2^12654305698 is an apocalyptic number.

12654305698 is a deficient number, since it is larger than the sum of its proper divisors (6327152852).

12654305698 is an equidigital number, since it uses as much as digits as its factorization.

12654305698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6327152851.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 12654305698 in words is "twelve billion, six hundred fifty-four million, three hundred five thousand, six hundred ninety-eight".