67897265709 has 16 divisors (see below), whose sum is σ = 111421154432. Its totient is φ = 35813942208.

The previous prime is 67897265659. The next prime is 67897265729. The reversal of 67897265709 is 90756279876.

It is not a de Polignac number, because 67897265709 - 2⁷ = 67897265581 is a prime.

It is a super-2 number, since 2×67897265709² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67897265709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67897265729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124353694 + ... + 124354239.

It is an arithmetic number, because the mean of its divisors is an integer number (6963822152).

Almost surely, 2^67897265709 is an apocalyptic number.

It is an amenable number.

67897265709 is a deficient number, since it is larger than the sum of its proper divisors (43523888723).

67897265709 is a wasteful number, since it uses less digits than its factorization.

67897265709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248707956.

The product of its (nonzero) digits is 80015040, while the sum is 66.

The spelling of 67897265709 in words is "sixty-seven billion, eight hundred ninety-seven million, two hundred sixty-five thousand, seven hundred nine".