12940747802 has 4 divisors (see below), whose sum is σ = 19411121706. Its totient is φ = 6470373900.

The previous prime is 12940747793. The next prime is 12940747843. The reversal of 12940747802 is 20874704921.

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., 8286642961 + 4654104841 = 91031^2 + 68221^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3235186949 + ... + 3235186952.

Almost surely, 2^12940747802 is an apocalyptic number.

12940747802 is a deficient number, since it is larger than the sum of its proper divisors (6470373904).

12940747802 is an equidigital number, since it uses as much as digits as its factorization.

12940747802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6470373903.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 12940747802 in words is "twelve billion, nine hundred forty million, seven hundred forty-seven thousand, eight hundred two".