68497623021 has 8 divisors (see below), whose sum is σ = 91331583840. Its totient is φ = 45664372112.

The previous prime is 68497622989. The next prime is 68497623043. The reversal of 68497623021 is 12032679486.

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 68497623021 - 2⁵ = 68497622989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68497623071) 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, 117886 + ... + 388448.

It is an arithmetic number, because the mean of its divisors is an integer number (11416447980).

Almost surely, 2^68497623021 is an apocalyptic number.

It is an amenable number.

68497623021 is a deficient number, since it is larger than the sum of its proper divisors (22833960819).

68497623021 is a wasteful number, since it uses less digits than its factorization.

68497623021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354955.

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 68497623021 in words is "sixty-eight billion, four hundred ninety-seven million, six hundred twenty-three thousand, twenty-one".