11625871287 has 4 divisors (see below), whose sum is σ = 15501161720. Its totient is φ = 7750580856.

The previous prime is 11625871267. The next prime is 11625871291. The reversal of 11625871287 is 78217852611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78217852611 = 3 ⋅26072617537.

It is not a de Polignac number, because 11625871287 - 2⁶ = 11625871223 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 (11625871237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1937645212 + ... + 1937645217.

It is an arithmetic number, because the mean of its divisors is an integer number (3875290430).

Almost surely, 2^11625871287 is an apocalyptic number.

11625871287 is a deficient number, since it is larger than the sum of its proper divisors (3875290433).

11625871287 is an equidigital number, since it uses as much as digits as its factorization.

11625871287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3875290432.

The product of its digits is 376320, while the sum is 48.

The spelling of 11625871287 in words is "eleven billion, six hundred twenty-five million, eight hundred seventy-one thousand, two hundred eighty-seven".