67479481663 has 12 divisors (see below), whose sum is σ = 76065237864. Its totient is φ = 59366103600.

The previous prime is 67479481637. The next prime is 67479481669. The reversal of 67479481663 is 36618497476.

It is not a de Polignac number, because 67479481663 - 2²¹ = 67477384511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67479481669) 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 11 ways as a sum of consecutive naturals, for example, 3181156 + ... + 3202297.

It is an arithmetic number, because the mean of its divisors is an integer number (6338769822).

Almost surely, 2^67479481663 is an apocalyptic number.

67479481663 is a deficient number, since it is larger than the sum of its proper divisors (8585756201).

67479481663 is a wasteful number, since it uses less digits than its factorization.

67479481663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6383526 (or 6383495 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 61.

The spelling of 67479481663 in words is "sixty-seven billion, four hundred seventy-nine million, four hundred eighty-one thousand, six hundred sixty-three".