67679677961 has 8 divisors (see below), whose sum is σ = 77468876544. Its totient is φ = 57920647680.

The previous prime is 67679677889. The next prime is 67679677963. The reversal of 67679677961 is 16977697676.

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

It is not a de Polignac number, because 67679677961 - 2²² = 67675483657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67679677963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7537265 + ... + 7546238.

It is an arithmetic number, because the mean of its divisors is an integer number (9683609568).

Almost surely, 2^67679677961 is an apocalyptic number.

It is an amenable number.

67679677961 is a deficient number, since it is larger than the sum of its proper divisors (9789198583).

67679677961 is a wasteful number, since it uses less digits than its factorization.

67679677961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15084151.

The product of its digits is 252047376, while the sum is 71.

The spelling of 67679677961 in words is "sixty-seven billion, six hundred seventy-nine million, six hundred seventy-seven thousand, nine hundred sixty-one".