8138026287 has 64 divisors (see below), whose sum is σ = 13316608000. Its totient is φ = 4891881600.

The previous prime is 8138026283. The next prime is 8138026307. The reversal of 8138026287 is 7826208318.

8138026287 is a `hidden beast` number, since 8 + 1 + 380 + 262 + 8 + 7 = 666.

It is not a de Polignac number, because 8138026287 - 2² = 8138026283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8138026283) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 965889 + ... + 974277.

It is an arithmetic number, because the mean of its divisors is an integer number (208072000).

Almost surely, 2^8138026287 is an apocalyptic number.

8138026287 is a deficient number, since it is larger than the sum of its proper divisors (5178581713).

8138026287 is a wasteful number, since it uses less digits than its factorization.

8138026287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8509 (or 8503 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 8138026287 is about 90211.0097881628. The cubic root of 8138026287 is about 2011.4366672473.

The spelling of 8138026287 in words is "eight billion, one hundred thirty-eight million, twenty-six thousand, two hundred eighty-seven".