1250001263750 has 20 divisors (see below), whose sum is σ = 2343002371116. Its totient is φ = 500000505000.

The previous prime is 1250001263747. The next prime is 1250001263767. The reversal of 1250001263750 is 573621000521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 499999256 + ... + 500001755.

Almost surely, 2^{1250001263750} is an apocalyptic number.

1250001263750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1250001263750 is a deficient number, since it is larger than the sum of its proper divisors (1093001107366).

1250001263750 is an equidigital number, since it uses as much as digits as its factorization.

1250001263750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000001033 (or 1000001018 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 1250001263750 in words is "one trillion, two hundred fifty billion, one million, two hundred sixty-three thousand, seven hundred fifty".