67620375520720 has 40 divisors (see below), whose sum is σ = 171509861550240. Its totient is φ = 24589227461760.

The previous prime is 67620375520661. The next prime is 67620375520813. The reversal of 67620375520720 is 2702557302676.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×67620375520720² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38420667030 + ... + 38420668789.

It is an arithmetic number, because the mean of its divisors is an integer number (4287746538756).

Almost surely, 2^{67620375520720} is an apocalyptic number.

It is an amenable number.

67620375520720 is an abundant number, since it is smaller than the sum of its proper divisors (103889486029520).

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

67620375520720 is a wasteful number, since it uses less digits than its factorization.

67620375520720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76841335843 (or 76841335837 counting only the distinct ones).

The product of its (nonzero) digits is 7408800, while the sum is 52.

The spelling of 67620375520720 in words is "sixty-seven trillion, six hundred twenty billion, three hundred seventy-five million, five hundred twenty thousand, seven hundred twenty".