67757281825 has 24 divisors (see below), whose sum is σ = 87693422976. Its totient is φ = 51836400000.

The previous prime is 67757281817. The next prime is 67757281841. The reversal of 67757281825 is 52818275776.

It is not a de Polignac number, because 67757281825 - 2³ = 67757281817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67757281825.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2834925 + ... + 2858725.

It is an arithmetic number, because the mean of its divisors is an integer number (3653892624).

Almost surely, 2^67757281825 is an apocalyptic number.

It is an amenable number.

67757281825 is a deficient number, since it is larger than the sum of its proper divisors (19936141151).

67757281825 is a wasteful number, since it uses less digits than its factorization.

67757281825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28785 (or 28780 counting only the distinct ones).

The product of its digits is 13171200, while the sum is 58.

The spelling of 67757281825 in words is "sixty-seven billion, seven hundred fifty-seven million, two hundred eighty-one thousand, eight hundred twenty-five".