68078151 has 24 divisors (see below), whose sum is σ = 102442704. Its totient is φ = 45178560.

The previous prime is 68078123. The next prime is 68078161. The reversal of 68078151 is 15187086.

It is not a de Polignac number, because 68078151 - 2¹¹ = 68076103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68078111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67785 + ... + 68781.

It is an arithmetic number, because the mean of its divisors is an integer number (4268446).

Almost surely, 2^68078151 is an apocalyptic number.

68078151 is a deficient number, since it is larger than the sum of its proper divisors (34364553).

68078151 is an equidigital number, since it uses as much as digits as its factorization.

68078151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293 (or 1281 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 68078151 is about 8250.9484909312. The cubic root of 68078151 is about 408.3218157333.

The spelling of 68078151 in words is "sixty-eight million, seventy-eight thousand, one hundred fifty-one".