68123988330572 has 12 divisors (see below), whose sum is σ = 119220018544536. Its totient is φ = 34061125889280.

The previous prime is 68123988330557. The next prime is 68123988330623. The reversal of 68123988330572 is 27503388932186.

It is a hoax number, since the sum of its digits (65) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 68123988330499 and 68123988330508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216892454 + ... + 217206317.

It is an arithmetic number, because the mean of its divisors is an integer number (9935001545378).

Almost surely, 2^{68123988330572} is an apocalyptic number.

It is an amenable number.

68123988330572 is a deficient number, since it is larger than the sum of its proper divisors (51096030213964).

68123988330572 is a wasteful number, since it uses less digits than its factorization.

68123988330572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434138008 (or 434138006 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 65.

The spelling of 68123988330572 in words is "sixty-eight trillion, one hundred twenty-three billion, nine hundred eighty-eight million, three hundred thirty thousand, five hundred seventy-two".