8258139645889 has 12 divisors (see below), whose sum is σ = 10112007730800. Its totient is φ = 6705857756808.

The previous prime is 8258139645887. The next prime is 8258139645907. The reversal of 8258139645889 is 9885469318528.

It is not a de Polignac number, because 8258139645889 - 2¹ = 8258139645887 is a prime.

It is a super-2 number, since 2×8258139645889² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8258139645887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4435090179 + ... + 4435092040.

It is an arithmetic number, because the mean of its divisors is an integer number (842667310900).

Almost surely, 2^{8258139645889} is an apocalyptic number.

It is an amenable number.

8258139645889 is a deficient number, since it is larger than the sum of its proper divisors (1853868084911).

8258139645889 is a wasteful number, since it uses less digits than its factorization.

8258139645889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8870182252 (or 8870182245 counting only the distinct ones).

The product of its digits is 1194393600, while the sum is 76.

The spelling of 8258139645889 in words is "eight trillion, two hundred fifty-eight billion, one hundred thirty-nine million, six hundred forty-five thousand, eight hundred eighty-nine".