8151794242187 has 2 divisors, whose sum is σ = 8151794242188. Its totient is φ = 8151794242186.

The previous prime is 8151794242129. The next prime is 8151794242201. The reversal of 8151794242187 is 7812424971518.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8151794242187 - 2¹⁰ = 8151794241163 is a prime.

It is a super-2 number, since 2×8151794242187² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8151794242117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4075897121093 + 4075897121094.

It is an arithmetic number, because the mean of its divisors is an integer number (4075897121094).

Almost surely, 2^{8151794242187} is an apocalyptic number.

8151794242187 is a deficient number, since it is larger than the sum of its proper divisors (1).

8151794242187 is an equidigital number, since it uses as much as digits as its factorization.

8151794242187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9031680, while the sum is 59.

The spelling of 8151794242187 in words is "eight trillion, one hundred fifty-one billion, seven hundred ninety-four million, two hundred forty-two thousand, one hundred eighty-seven".