1257006263875 has 16 divisors (see below), whose sum is σ = 1602121352832. Its totient is φ = 984209155200.

The previous prime is 1257006263857. The next prime is 1257006263893. The reversal of 1257006263875 is 5783626007521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1257006263857) and next prime (1257006263893).

It is not a de Polignac number, because 1257006263875 - 2²¹ = 1257004166723 is a prime.

It is a super-2 number, since 2×1257006263875² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106973382 + ... + 106985131.

It is an arithmetic number, because the mean of its divisors is an integer number (100132584552).

Almost surely, 2^{1257006263875} is an apocalyptic number.

1257006263875 is a deficient number, since it is larger than the sum of its proper divisors (345115088957).

1257006263875 is an equidigital number, since it uses as much as digits as its factorization.

1257006263875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213958575 (or 213958565 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 1257006263875 in words is "one trillion, two hundred fifty-seven billion, six million, two hundred sixty-three thousand, eight hundred seventy-five".