67981362913 has 16 divisors (see below), whose sum is σ = 71355248640. Its totient is φ = 64642811904.

The previous prime is 67981362907. The next prime is 67981362929. The reversal of 67981362913 is 31926318976.

It is a cyclic number.

It is not a de Polignac number, because 67981362913 - 2¹⁷ = 67981231841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67981362973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7377453 + ... + 7386661.

It is an arithmetic number, because the mean of its divisors is an integer number (4459703040).

Almost surely, 2^67981362913 is an apocalyptic number.

It is an amenable number.

67981362913 is a deficient number, since it is larger than the sum of its proper divisors (3373885727).

67981362913 is a wasteful number, since it uses less digits than its factorization.

67981362913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11088.

The product of its digits is 2939328, while the sum is 55.

The spelling of 67981362913 in words is "sixty-seven billion, nine hundred eighty-one million, three hundred sixty-two thousand, nine hundred thirteen".