68620671571 has 8 divisors (see below), whose sum is σ = 68755244544. Its totient is φ = 68486159880.

The previous prime is 68620671569. The next prime is 68620671577. The reversal of 68620671571 is 17517602686.

It is a happy number.

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 68620671571 - 2¹ = 68620671569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68620671577) 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, 2682186 + ... + 2707648.

It is an arithmetic number, because the mean of its divisors is an integer number (8594405568).

Almost surely, 2^68620671571 is an apocalyptic number.

68620671571 is a deficient number, since it is larger than the sum of its proper divisors (134572973).

68620671571 is a wasteful number, since it uses less digits than its factorization.

68620671571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30641.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 68620671571 in words is "sixty-eight billion, six hundred twenty million, six hundred seventy-one thousand, five hundred seventy-one".