667326253847 has 48 divisors (see below), whose sum is σ = 785399771520. Its totient is φ = 564879458880.

The previous prime is 667326253843. The next prime is 667326253859. The reversal of 667326253847 is 748352623766.

It is not a de Polignac number, because 667326253847 - 2² = 667326253843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667326253843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71928773 + ... + 71938049.

It is an arithmetic number, because the mean of its divisors is an integer number (16362495240).

Almost surely, 2^667326253847 is an apocalyptic number.

667326253847 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

667326253847 is a deficient number, since it is larger than the sum of its proper divisors (118073517673).

667326253847 is a wasteful number, since it uses less digits than its factorization.

667326253847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9852 (or 9841 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 59.

The spelling of 667326253847 in words is "six hundred sixty-seven billion, three hundred twenty-six million, two hundred fifty-three thousand, eight hundred forty-seven".