78888151 has 2 divisors, whose sum is σ = 78888152. Its totient is φ = 78888150.

The previous prime is 78888119. The next prime is 78888163. The reversal of 78888151 is 15188887.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78888151 - 2⁵ = 78888119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78888191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39444075 + 39444076.

It is an arithmetic number, because the mean of its divisors is an integer number (39444076).

Almost surely, 2^78888151 is an apocalyptic number.

78888151 is a deficient number, since it is larger than the sum of its proper divisors (1).

78888151 is an equidigital number, since it uses as much as digits as its factorization.

78888151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 143360, while the sum is 46.

The square root of 78888151 is about 8881.9001908375. The cubic root of 78888151 is about 428.8814465490.

The spelling of 78888151 in words is "seventy-eight million, eight hundred eighty-eight thousand, one hundred fifty-one".