1263343825751 has 16 divisors (see below), whose sum is σ = 1483321615680. Its totient is φ = 1053259925760.

The previous prime is 1263343825727. The next prime is 1263343825769. The reversal of 1263343825751 is 1575283433621.

It is not a de Polignac number, because 1263343825751 - 2¹⁴ = 1263343809367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1263343825751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263343825351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20771 + ... + 1589691.

It is an arithmetic number, because the mean of its divisors is an integer number (92707600980).

Almost surely, 2^{1263343825751} is an apocalyptic number.

1263343825751 is a deficient number, since it is larger than the sum of its proper divisors (219977789929).

1263343825751 is a wasteful number, since it uses less digits than its factorization.

1263343825751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572074.

The product of its digits is 3628800, while the sum is 50.

The spelling of 1263343825751 in words is "one trillion, two hundred sixty-three billion, three hundred forty-three million, eight hundred twenty-five thousand, seven hundred fifty-one".