68198291134 has 4 divisors (see below), whose sum is σ = 102297436704. Its totient is φ = 34099145566.

The previous prime is 68198291129. The next prime is 68198291141. The reversal of 68198291134 is 43119289186.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17049572782 + ... + 17049572785.

It is an arithmetic number, because the mean of its divisors is an integer number (25574359176).

Almost surely, 2^68198291134 is an apocalyptic number.

68198291134 is a deficient number, since it is larger than the sum of its proper divisors (34099145570).

68198291134 is a wasteful number, since it uses less digits than its factorization.

68198291134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34099145569.

The product of its digits is 746496, while the sum is 52.

The spelling of 68198291134 in words is "sixty-eight billion, one hundred ninety-eight million, two hundred ninety-one thousand, one hundred thirty-four".