1244104684651 has 4 divisors (see below), whose sum is σ = 1309583878600. Its totient is φ = 1178625490704.

The previous prime is 1244104684649. The next prime is 1244104684681. The reversal of 1244104684651 is 1564864014421.

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

It is a cyclic number.

It is not a de Polignac number, because 1244104684651 - 2¹ = 1244104684649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244104684601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32739596946 + ... + 32739596983.

It is an arithmetic number, because the mean of its divisors is an integer number (327395969650).

Almost surely, 2^{1244104684651} is an apocalyptic number.

1244104684651 is a deficient number, since it is larger than the sum of its proper divisors (65479193949).

1244104684651 is an equidigital number, since it uses as much as digits as its factorization.

1244104684651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65479193948.

The product of its (nonzero) digits is 737280, while the sum is 46.

The spelling of 1244104684651 in words is "one trillion, two hundred forty-four billion, one hundred four million, six hundred eighty-four thousand, six hundred fifty-one".