67540980231 has 6 divisors (see below), whose sum is σ = 97559193680. Its totient is φ = 45027320148.

The previous prime is 67540980187. The next prime is 67540980233. The reversal of 67540980231 is 13208904576.

67540980231 is a `hidden beast` number, since 6 + 7 + 5 + 409 + 8 + 0 + 231 = 666.

67540980231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 67540980231 - 2³⁰ = 66467238407 is a prime.

It is a super-2 number, since 2×67540980231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67540980233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3752276671 + ... + 3752276688.

It is a 1-persistent number, because it is pandigital, but 2⋅67540980231 = 135081960462 is not.

Almost surely, 2^67540980231 is an apocalyptic number.

67540980231 is a deficient number, since it is larger than the sum of its proper divisors (30018213449).

67540980231 is a wasteful number, since it uses less digits than its factorization.

67540980231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7504553365 (or 7504553362 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 67540980231 in words is "sixty-seven billion, five hundred forty million, nine hundred eighty thousand, two hundred thirty-one".