1044263400551 has 16 divisors (see below), whose sum is σ = 1205433435648. Its totient is φ = 886096562400.

The previous prime is 1044263400539. The next prime is 1044263400563. The reversal of 1044263400551 is 1550043624401.

It is an interprime number because it is at equal distance from previous prime (1044263400539) and next prime (1044263400563).

It is a de Polignac number, because none of the positive numbers 2^k-1044263400551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044263406551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1930421 + ... + 2411441.

It is an arithmetic number, because the mean of its divisors is an integer number (75339589728).

Almost surely, 2^{1044263400551} is an apocalyptic number.

1044263400551 is a deficient number, since it is larger than the sum of its proper divisors (161170035097).

1044263400551 is a wasteful number, since it uses less digits than its factorization.

1044263400551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484142.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 1044263400551 in words is "one trillion, forty-four billion, two hundred sixty-three million, four hundred thousand, five hundred fifty-one".