8138775558019 has 16 divisors (see below), whose sum is σ = 8307818719200. Its totient is φ = 7970787763456.

The previous prime is 8138775558013. The next prime is 8138775558029. The reversal of 8138775558019 is 9108555778318.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8138775558019 is a prime.

It is a super-2 number, since 2×8138775558019² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8138775558013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51245817 + ... + 51404389.

It is an arithmetic number, because the mean of its divisors is an integer number (519238669950).

Almost surely, 2^{8138775558019} is an apocalyptic number.

8138775558019 is a deficient number, since it is larger than the sum of its proper divisors (169043161181).

8138775558019 is a wasteful number, since it uses less digits than its factorization.

8138775558019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161894.

The product of its (nonzero) digits is 84672000, while the sum is 67.

The spelling of 8138775558019 in words is "eight trillion, one hundred thirty-eight billion, seven hundred seventy-five million, five hundred fifty-eight thousand, nineteen".