12724697078 has 4 divisors (see below), whose sum is σ = 19087045620. Its totient is φ = 6362348538.

The previous prime is 12724697071. The next prime is 12724697099. The reversal of 12724697078 is 87079642721.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12724697071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3181174268 + ... + 3181174271.

It is an arithmetic number, because the mean of its divisors is an integer number (4771761405).

Almost surely, 2^12724697078 is an apocalyptic number.

12724697078 is a deficient number, since it is larger than the sum of its proper divisors (6362348542).

12724697078 is an equidigital number, since it uses as much as digits as its factorization.

12724697078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6362348541.

The product of its (nonzero) digits is 2370816, while the sum is 53.

The spelling of 12724697078 in words is "twelve billion, seven hundred twenty-four million, six hundred ninety-seven thousand, seventy-eight".