67408720901 has 8 divisors (see below), whose sum is σ = 67484386200. Its totient is φ = 67333091328.

The previous prime is 67408720859. The next prime is 67408720913. The reversal of 67408720901 is 10902780476.

It can be written as a sum of positive squares in 4 ways, for example, as 1487644900 + 65921076001 = 38570^2 + 256751^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67408720901 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 (67408720991) 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, 5588525 + ... + 5600573.

It is an arithmetic number, because the mean of its divisors is an integer number (8435548275).

Almost surely, 2^67408720901 is an apocalyptic number.

It is an amenable number.

67408720901 is a deficient number, since it is larger than the sum of its proper divisors (75665299).

67408720901 is a wasteful number, since it uses less digits than its factorization.

67408720901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17863.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 67408720901 in words is "sixty-seven billion, four hundred eight million, seven hundred twenty thousand, nine hundred one".