67426657225 has 24 divisors (see below), whose sum is σ = 84430988928. Its totient is φ = 53411534400.

The previous prime is 67426657213. The next prime is 67426657231. The reversal of 67426657225 is 52275662476.

It is not a de Polignac number, because 67426657225 - 2³¹ = 65279173577 is a prime.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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, 7140207 + ... + 7149643.

It is an arithmetic number, because the mean of its divisors is an integer number (3517957872).

Almost surely, 2^67426657225 is an apocalyptic number.

It is an amenable number.

67426657225 is a deficient number, since it is larger than the sum of its proper divisors (17004331703).

67426657225 is a wasteful number, since it uses less digits than its factorization.

67426657225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12225 (or 12220 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 52.

The spelling of 67426657225 in words is "sixty-seven billion, four hundred twenty-six million, six hundred fifty-seven thousand, two hundred twenty-five".