67219263644 has 48 divisors (see below), whose sum is σ = 134340933888. Its totient is φ = 29154352128.

The previous prime is 67219263641. The next prime is 67219263649. The reversal of 67219263644 is 44636291276.

It is a junction number, because it is equal to n+sod(n) for n = 67219263592 and 67219263601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67219263641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519029 + ... + 635475.

It is an arithmetic number, because the mean of its divisors is an integer number (2798769456).

Almost surely, 2^67219263644 is an apocalyptic number.

It is an amenable number.

67219263644 is a deficient number, since it is larger than the sum of its proper divisors (67121670244).

67219263644 is a wasteful number, since it uses less digits than its factorization.

67219263644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117134 (or 117132 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 50.

The spelling of 67219263644 in words is "sixty-seven billion, two hundred nineteen million, two hundred sixty-three thousand, six hundred forty-four".