68772645216 has 192 divisors, whose sum is σ = 219012595200. Its totient is φ = 20822054400.

The previous prime is 68772645211. The next prime is 68772645241. The reversal of 68772645216 is 61254627786.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68772645211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14358150 + ... + 14362938.

It is an arithmetic number, because the mean of its divisors is an integer number (1140690600).

Almost surely, 2^68772645216 is an apocalyptic number.

68772645216 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68772645216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109506297600).

68772645216 is an abundant number, since it is smaller than the sum of its proper divisors (150239949984).

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

68772645216 is a wasteful number, since it uses less digits than its factorization.

68772645216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6330 (or 6316 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The spelling of 68772645216 in words is "sixty-eight billion, seven hundred seventy-two million, six hundred forty-five thousand, two hundred sixteen".