67944455425 has 48 divisors (see below), whose sum is σ = 105908828544. Its totient is φ = 42354840000.

The previous prime is 67944455393. The next prime is 67944455443. The reversal of 67944455425 is 52455444976.

67944455425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 67944455425 - 2⁵ = 67944455393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87075 + ... + 378775.

It is an arithmetic number, because the mean of its divisors is an integer number (2206433928).

Almost surely, 2^67944455425 is an apocalyptic number.

It is an amenable number.

67944455425 is a deficient number, since it is larger than the sum of its proper divisors (37964373119).

67944455425 is a wasteful number, since it uses less digits than its factorization.

67944455425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291751 (or 291724 counting only the distinct ones).

The product of its digits is 24192000, while the sum is 55.

The spelling of 67944455425 in words is "sixty-seven billion, nine hundred forty-four million, four hundred fifty-five thousand, four hundred twenty-five".