67667541957 has 12 divisors (see below), whose sum is σ = 98511628800. Its totient is φ = 44756483688.

The previous prime is 67667541947. The next prime is 67667541979. The reversal of 67667541957 is 75914576676.

It is not a de Polignac number, because 67667541957 - 2¹⁶ = 67667476421 is a prime.

It is a super-3 number, since 3×67667541957³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67667541894 and 67667541903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67667541947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29599707 + ... + 29601992.

It is an arithmetic number, because the mean of its divisors is an integer number (8209302400).

Almost surely, 2^67667541957 is an apocalyptic number.

It is an amenable number.

67667541957 is a deficient number, since it is larger than the sum of its proper divisors (30844086843).

67667541957 is a wasteful number, since it uses less digits than its factorization.

67667541957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59201832 (or 59201829 counting only the distinct ones).

The product of its digits is 66679200, while the sum is 63.

The spelling of 67667541957 in words is "sixty-seven billion, six hundred sixty-seven million, five hundred forty-one thousand, nine hundred fifty-seven".