67744674037444 has 72 divisors (see below), whose sum is σ = 130532949391320. Its totient is φ = 30654953671680.

The previous prime is 67744674037409. The next prime is 67744674037463. The reversal of 67744674037444 is 44473047644776.

It can be written as a sum of positive squares in 4 ways, for example, as 9716387220544 + 58028286816900 = 3117112^2 + 7617630^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 67744674037444.

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, 6958122 + ... + 13561150.

It is an arithmetic number, because the mean of its divisors is an integer number (1812957630435).

Almost surely, 2^{67744674037444} is an apocalyptic number.

It is an amenable number.

67744674037444 is a deficient number, since it is larger than the sum of its proper divisors (62788275353876).

67744674037444 is a wasteful number, since it uses less digits than its factorization.

67744674037444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6603269 (or 6603236 counting only the distinct ones).

The product of its (nonzero) digits is 1062125568, while the sum is 67.

The spelling of 67744674037444 in words is "sixty-seven trillion, seven hundred forty-four billion, six hundred seventy-four million, thirty-seven thousand, four hundred forty-four".