68839794150626 has 16 divisors (see below), whose sum is σ = 106832750239800. Its totient is φ = 33229152515328.

The previous prime is 68839794150613. The next prime is 68839794150629. The reversal of 68839794150626 is 62605149793886.

It is a Cunningham number, because it is equal to 8296975²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 68839794150625 + 1 = 8296975^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (68839794150629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68273015 + ... + 69273978.

It is a 1-persistent number, because it is pandigital, but 2⋅68839794150626 = 137679588301252 is not.

Almost surely, 2^{68839794150626} is an apocalyptic number.

68839794150626 is a deficient number, since it is larger than the sum of its proper divisors (37992956089174).

68839794150626 is a wasteful number, since it uses less digits than its factorization.

68839794150626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137555653.

The product of its (nonzero) digits is 940584960, while the sum is 74.

The spelling of 68839794150626 in words is "sixty-eight trillion, eight hundred thirty-nine billion, seven hundred ninety-four million, one hundred fifty thousand, six hundred twenty-six".