67735665131 has 2 divisors, whose sum is σ = 67735665132. Its totient is φ = 67735665130.

The previous prime is 67735665047. The next prime is 67735665149. The reversal of 67735665131 is 13156653776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67735665131 - 2³⁴ = 50555795947 is a prime.

It is a super-2 number, since 2×67735665131² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67735665131.

It is not a weakly prime, because it can be changed into another prime (67735265131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33867832565 + 33867832566.

It is an arithmetic number, because the mean of its divisors is an integer number (33867832566).

Almost surely, 2^67735665131 is an apocalyptic number.

67735665131 is a deficient number, since it is larger than the sum of its proper divisors (1).

67735665131 is an equidigital number, since it uses as much as digits as its factorization.

67735665131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2381400, while the sum is 50.

The spelling of 67735665131 in words is "sixty-seven billion, seven hundred thirty-five million, six hundred sixty-five thousand, one hundred thirty-one".