67112735761 has 4 divisors (see below), whose sum is σ = 67230684900. Its totient is φ = 66994786624.

The previous prime is 67112735747. The next prime is 67112735783. The reversal of 67112735761 is 16753721176.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28104510736 + 39008225025 = 167644^2 + 197505^2 .

It is a cyclic number.

It is not a de Polignac number, because 67112735761 - 2⁷ = 67112735633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67112765761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58973716 + ... + 58974853.

It is an arithmetic number, because the mean of its divisors is an integer number (16807671225).

Almost surely, 2^67112735761 is an apocalyptic number.

It is an amenable number.

67112735761 is a deficient number, since it is larger than the sum of its proper divisors (117949139).

67112735761 is a wasteful number, since it uses less digits than its factorization.

67112735761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117949138.

The product of its digits is 370440, while the sum is 46.

It can be divided in two parts, 6711 and 2735761, that added together give a palindrome (2742472).

The spelling of 67112735761 in words is "sixty-seven billion, one hundred twelve million, seven hundred thirty-five thousand, seven hundred sixty-one".