1263875126375 has 8 divisors (see below), whose sum is σ = 1577316157872. Its totient is φ = 1011100101000.

The previous prime is 1263875126351. The next prime is 1263875126389. The reversal of 1263875126375 is 5736215783621.

It is not a de Polignac number, because 1263875126375 - 2¹⁰ = 1263875125351 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 1263875126375.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5055500381 + ... + 5055500630.

It is an arithmetic number, because the mean of its divisors is an integer number (197164519734).

Almost surely, 2^{1263875126375} is an apocalyptic number.

1263875126375 is a deficient number, since it is larger than the sum of its proper divisors (313441031497).

1263875126375 is an equidigital number, since it uses as much as digits as its factorization.

1263875126375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10111001026 (or 10111001016 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 56.

The spelling of 1263875126375 in words is "one trillion, two hundred sixty-three billion, eight hundred seventy-five million, one hundred twenty-six thousand, three hundred seventy-five".