71668767454 has 8 divisors (see below), whose sum is σ = 107538863688. Its totient is φ = 35822479560.

The previous prime is 71668767451. The next prime is 71668767473. The reversal of 71668767454 is 45476786617.

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

It is a junction number, because it is equal to n+sod(n) for n = 71668767392 and 71668767401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71668767451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5944557 + ... + 5956600.

It is an arithmetic number, because the mean of its divisors is an integer number (13442357961).

Almost surely, 2^71668767454 is an apocalyptic number.

71668767454 is a deficient number, since it is larger than the sum of its proper divisors (35870096234).

71668767454 is a wasteful number, since it uses less digits than its factorization.

71668767454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11904170.

The product of its digits is 47416320, while the sum is 61.

The spelling of 71668767454 in words is "seventy-one billion, six hundred sixty-eight million, seven hundred sixty-seven thousand, four hundred fifty-four".