8151418140109 has 2 divisors, whose sum is σ = 8151418140110. Its totient is φ = 8151418140108.

The previous prime is 8151418140059. The next prime is 8151418140113. The reversal of 8151418140109 is 9010418141518.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6971696317609 + 1179721822500 = 2640397^2 + 1086150^2 .

It is a cyclic number.

It is not a de Polignac number, because 8151418140109 - 2¹⁵ = 8151418107341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8151418140209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4075709070054 + 4075709070055.

It is an arithmetic number, because the mean of its divisors is an integer number (4075709070055).

Almost surely, 2^{8151418140109} is an apocalyptic number.

It is an amenable number.

8151418140109 is a deficient number, since it is larger than the sum of its proper divisors (1).

8151418140109 is an equidigital number, since it uses as much as digits as its factorization.

8151418140109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 43.

The spelling of 8151418140109 in words is "eight trillion, one hundred fifty-one billion, four hundred eighteen million, one hundred forty thousand, one hundred nine".