67720744330 has 8 divisors (see below), whose sum is σ = 121897339812. Its totient is φ = 27088297728.

The previous prime is 67720744327. The next prime is 67720744367. The reversal of 67720744330 is 3344702776.

67720744330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 63906323209 + 3814421121 = 252797^2 + 61761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3386037207 + ... + 3386037226.

Almost surely, 2^67720744330 is an apocalyptic number.

67720744330 is a deficient number, since it is larger than the sum of its proper divisors (54176595482).

67720744330 is a wasteful number, since it uses less digits than its factorization.

67720744330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6772074440.

The product of its (nonzero) digits is 592704, while the sum is 43.

The spelling of 67720744330 in words is "sixty-seven billion, seven hundred twenty million, seven hundred forty-four thousand, three hundred thirty".