68045615386 has 16 divisors (see below), whose sum is σ = 123511369536. Its totient is φ = 27446970816.

The previous prime is 68045615377. The next prime is 68045615389. The reversal of 68045615386 is 68351654086.

It is not an unprimeable number, because it can be changed into a prime (68045615389) 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, 142952736 + ... + 142953211.

It is an arithmetic number, because the mean of its divisors is an integer number (7719460596).

Almost surely, 2^68045615386 is an apocalyptic number.

68045615386 is a deficient number, since it is larger than the sum of its proper divisors (55465754150).

68045615386 is a wasteful number, since it uses less digits than its factorization.

68045615386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285905973.

The product of its (nonzero) digits is 4147200, while the sum is 52.

It can be divided in two parts, 68045615 and 386, that added together give a square (68046001 = 8249²).

The spelling of 68045615386 in words is "sixty-eight billion, forty-five million, six hundred fifteen thousand, three hundred eighty-six".