67479625720 has 128 divisors (see below), whose sum is σ = 169765424640. Its totient is φ = 23971461120.

The previous prime is 67479625711. The next prime is 67479625723. The reversal of 67479625720 is 2752697476.

It is a super-2 number, since 2×67479625720² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67479625723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2776662 + ... + 2800858.

It is an arithmetic number, because the mean of its divisors is an integer number (1326292380).

Almost surely, 2^67479625720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67479625720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84882712320).

67479625720 is an abundant number, since it is smaller than the sum of its proper divisors (102285798920).

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

67479625720 is a wasteful number, since it uses less digits than its factorization.

67479625720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24425 (or 24421 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 55.

The spelling of 67479625720 in words is "sixty-seven billion, four hundred seventy-nine million, six hundred twenty-five thousand, seven hundred twenty".