78177048384151 has 2 divisors, whose sum is σ = 78177048384152. Its totient is φ = 78177048384150.

The previous prime is 78177048384011. The next prime is 78177048384209. The reversal of 78177048384151 is 15148384077187.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78177048384151 - 2⁴⁵ = 42992676295319 is a prime.

It is a super-3 number, since 3×78177048384151³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78177048384551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39088524192075 + 39088524192076.

It is an arithmetic number, because the mean of its divisors is an integer number (39088524192076).

Almost surely, 2^{78177048384151} is an apocalyptic number.

78177048384151 is a deficient number, since it is larger than the sum of its proper divisors (1).

78177048384151 is an equidigital number, since it uses as much as digits as its factorization.

78177048384151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42147840, while the sum is 64.

The spelling of 78177048384151 in words is "seventy-eight trillion, one hundred seventy-seven billion, forty-eight million, three hundred eighty-four thousand, one hundred fifty-one".