87631126775 has 12 divisors (see below), whose sum is σ = 108667416864. Its totient is φ = 70101792000.

The previous prime is 87631126741. The next prime is 87631126787. The reversal of 87631126775 is 57762113678.

It is not a de Polignac number, because 87631126775 - 2⁶ = 87631126711 is a prime.

It is a super-2 number, since 2×87631126775² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 619970 + ... + 748080.

It is an arithmetic number, because the mean of its divisors is an integer number (9055618072).

Almost surely, 2^87631126775 is an apocalyptic number.

87631126775 is a deficient number, since it is larger than the sum of its proper divisors (21036290089).

87631126775 is a wasteful number, since it uses less digits than its factorization.

87631126775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155482 (or 155477 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 53.

The spelling of 87631126775 in words is "eighty-seven billion, six hundred thirty-one million, one hundred twenty-six thousand, seven hundred seventy-five".