60721622808 has 96 divisors (see below), whose sum is σ = 192641924160. Its totient is φ = 15771846720.

The previous prime is 60721622803. The next prime is 60721622849. The reversal of 60721622808 is 80822612706.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 60721622808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60721622803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2334066 + ... + 2359937.

It is an arithmetic number, because the mean of its divisors is an integer number (2006686710).

Almost surely, 2^60721622808 is an apocalyptic number.

It is an amenable number.

60721622808 is an abundant number, since it is smaller than the sum of its proper divisors (131920301352).

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

60721622808 is a wasteful number, since it uses less digits than its factorization.

60721622808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694037 (or 4694026 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 60721622808 in words is "sixty billion, seven hundred twenty-one million, six hundred twenty-two thousand, eight hundred eight".