67938877697 has 8 divisors (see below), whose sum is σ = 69163255392. Its totient is φ = 66725193600.

The previous prime is 67938877693. The next prime is 67938877723. The reversal of 67938877697 is 79677883976.

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

It is a cyclic number.

It is not a de Polignac number, because 67938877697 - 2² = 67938877693 is a prime.

It is a super-2 number, since 2×67938877697² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67938877691) 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, 2660579 + ... + 2685992.

It is an arithmetic number, because the mean of its divisors is an integer number (8645406924).

Almost surely, 2^67938877697 is an apocalyptic number.

It is an amenable number.

67938877697 is a deficient number, since it is larger than the sum of its proper divisors (1224377695).

67938877697 is a wasteful number, since it uses less digits than its factorization.

67938877697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5346799.

The product of its digits is 1344252672, while the sum is 77.

The spelling of 67938877697 in words is "sixty-seven billion, nine hundred thirty-eight million, eight hundred seventy-seven thousand, six hundred ninety-seven".