67748406272 has 44 divisors (see below), whose sum is σ = 136952528940. Its totient is φ = 33493549056.

The previous prime is 67748406269. The next prime is 67748406389. The reversal of 67748406272 is 27260484776.

It can be written as a sum of positive squares in 2 ways, for example, as 23318511616 + 44429894656 = 152704^2 + 210784^2 .

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, 280553 + ... + 462824.

Almost surely, 2^67748406272 is an apocalyptic number.

It is an amenable number.

67748406272 is an abundant number, since it is smaller than the sum of its proper divisors (69204122668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67748406272 is an equidigital number, since it uses as much as digits as its factorization.

67748406272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743486 (or 743468 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 53.

The spelling of 67748406272 in words is "sixty-seven billion, seven hundred forty-eight million, four hundred six thousand, two hundred seventy-two".