68650644644700 has 36 divisors (see below), whose sum is σ = 198629198506200. Its totient is φ = 18306838571840.

The previous prime is 68650644644677. The next prime is 68650644644707. The reversal of 68650644644700 is 744644605686.

It is a super-2 number, since 2×68650644644700² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68650644644707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114417740775 + ... + 114417741374.

Almost surely, 2^{68650644644700} is an apocalyptic number.

68650644644700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68650644644700 is an abundant number, since it is smaller than the sum of its proper divisors (129978553861500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68650644644700 is a wasteful number, since it uses less digits than its factorization.

68650644644700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228835482166 (or 228835482159 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 60.

The spelling of 68650644644700 in words is "sixty-eight trillion, six hundred fifty billion, six hundred forty-four million, six hundred forty-four thousand, seven hundred".