68006778274 has 16 divisors (see below), whose sum is σ = 108022281048. Its totient is φ = 31999777792.

The previous prime is 68006778197. The next prime is 68006778283. The reversal of 68006778274 is 47287760086.

It is a happy number.

68006778274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 66504673225 + 1502105049 = 257885^2 + 38757^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232614 + ... + 436030.

Almost surely, 2^68006778274 is an apocalyptic number.

68006778274 is a deficient number, since it is larger than the sum of its proper divisors (40015502774).

68006778274 is a wasteful number, since it uses less digits than its factorization.

68006778274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213269.

The product of its (nonzero) digits is 6322176, while the sum is 55.

The spelling of 68006778274 in words is "sixty-eight billion, six million, seven hundred seventy-eight thousand, two hundred seventy-four".