67140721042437 has 8 divisors (see below), whose sum is σ = 102309670159936. Its totient is φ = 38366126309952.

The previous prime is 67140721042429. The next prime is 67140721042441. The reversal of 67140721042437 is 73424012704176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67140721042437 - 2³ = 67140721042429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67140721042237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1598588596228 + ... + 1598588596269.

It is an arithmetic number, because the mean of its divisors is an integer number (12788708769992).

Almost surely, 2^{67140721042437} is an apocalyptic number.

It is an amenable number.

67140721042437 is a deficient number, since it is larger than the sum of its proper divisors (35168949117499).

67140721042437 is a wasteful number, since it uses less digits than its factorization.

67140721042437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197177192507.

The product of its (nonzero) digits is 1580544, while the sum is 48.

The spelling of 67140721042437 in words is "sixty-seven trillion, one hundred forty billion, seven hundred twenty-one million, forty-two thousand, four hundred thirty-seven".