1044391678629 has 32 divisors (see below), whose sum is σ = 1518229735680. Its totient is φ = 634784297472.

The previous prime is 1044391678613. The next prime is 1044391678643. The reversal of 1044391678629 is 9268761934401.

It is not a de Polignac number, because 1044391678629 - 2⁴ = 1044391678613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044391678609) 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, 511857 + ... + 1533225.

It is an arithmetic number, because the mean of its divisors is an integer number (47444679240).

Almost surely, 2^{1044391678629} is an apocalyptic number.

It is an amenable number.

1044391678629 is a deficient number, since it is larger than the sum of its proper divisors (473838057051).

1044391678629 is a wasteful number, since it uses less digits than its factorization.

1044391678629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021709.

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 1044391678629 in words is "one trillion, forty-four billion, three hundred ninety-one million, six hundred seventy-eight thousand, six hundred twenty-nine".