68231772371 has 8 divisors (see below), whose sum is σ = 77983829760. Its totient is φ = 58480880328.

The previous prime is 68231772353. The next prime is 68231772391. The reversal of 68231772371 is 17327713286.

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 68231772371 - 2¹⁰ = 68231771347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68231772311) 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, 162041 + ... + 403386.

It is an arithmetic number, because the mean of its divisors is an integer number (9747978720).

Almost surely, 2^68231772371 is an apocalyptic number.

68231772371 is a deficient number, since it is larger than the sum of its proper divisors (9752057389).

68231772371 is a wasteful number, since it uses less digits than its factorization.

68231772371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582673.

The product of its digits is 592704, while the sum is 47.

The spelling of 68231772371 in words is "sixty-eight billion, two hundred thirty-one million, seven hundred seventy-two thousand, three hundred seventy-one".