68019728371 has 8 divisors (see below), whose sum is σ = 77738410080. Its totient is φ = 58301441088.

The previous prime is 68019728363. The next prime is 68019728377. The reversal of 68019728371 is 17382791086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68019728371 - 2³ = 68019728363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68019728377) 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, 623415 + ... + 724351.

It is an arithmetic number, because the mean of its divisors is an integer number (9717301260).

Almost surely, 2^68019728371 is an apocalyptic number.

68019728371 is a deficient number, since it is larger than the sum of its proper divisors (9718681709).

68019728371 is a wasteful number, since it uses less digits than its factorization.

68019728371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197213.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The spelling of 68019728371 in words is "sixty-eight billion, nineteen million, seven hundred twenty-eight thousand, three hundred seventy-one".