67929882497 has 8 divisors (see below), whose sum is σ = 72043103016. Its totient is φ = 63829700352.

The previous prime is 67929882469. The next prime is 67929882521. The reversal of 67929882497 is 79428892976.

It can be written as a sum of positive squares in 4 ways, for example, as 5013121 + 67924869376 = 2239^2 + 260624^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-67929882497 is a prime.

It is a super-2 number, since 2×67929882497² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67929882497.

It is not an unprimeable number, because it can be changed into a prime (67929872497) 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 7 ways as a sum of consecutive naturals, for example, 3248858 + ... + 3269699.

It is an arithmetic number, because the mean of its divisors is an integer number (9005387877).

Almost surely, 2^67929882497 is an apocalyptic number.

It is an amenable number.

67929882497 is a deficient number, since it is larger than the sum of its proper divisors (4113220519).

67929882497 is a wasteful number, since it uses less digits than its factorization.

67929882497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6519187.

The product of its digits is 219469824, while the sum is 71.

The spelling of 67929882497 in words is "sixty-seven billion, nine hundred twenty-nine million, eight hundred eighty-two thousand, four hundred ninety-seven".