8066787428177 has 2 divisors, whose sum is σ = 8066787428178. Its totient is φ = 8066787428176.

The previous prime is 8066787428137. The next prime is 8066787428261. The reversal of 8066787428177 is 7718247876608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7825312485376 + 241474942801 = 2797376^2 + 491401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8066787428177 is a prime.

It is a super-2 number, since 2×8066787428177² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8066787428177.

It is not a weakly prime, because it can be changed into another prime (8066787428137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4033393714088 + 4033393714089.

It is an arithmetic number, because the mean of its divisors is an integer number (4033393714089).

Almost surely, 2^{8066787428177} is an apocalyptic number.

It is an amenable number.

8066787428177 is a deficient number, since it is larger than the sum of its proper divisors (1).

8066787428177 is an equidigital number, since it uses as much as digits as its factorization.

8066787428177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 354041856, while the sum is 71.

The spelling of 8066787428177 in words is "eight trillion, sixty-six billion, seven hundred eighty-seven million, four hundred twenty-eight thousand, one hundred seventy-seven".