67732753261 has 8 divisors (see below), whose sum is σ = 69566620824. Its totient is φ = 65899056960.

The previous prime is 67732753259. The next prime is 67732753267. The reversal of 67732753261 is 16235723776.

It can be written as a sum of positive squares in 4 ways, for example, as 30978112036 + 36754641225 = 176006^2 + 191715^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67732753261 - 2¹ = 67732753259 is a prime.

It is a super-2 number, since 2×67732753261² (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 (67732753267) 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 7 ways as a sum of consecutive naturals, for example, 1525191 + ... + 1568971.

It is an arithmetic number, because the mean of its divisors is an integer number (8695827603).

Almost surely, 2^67732753261 is an apocalyptic number.

It is an amenable number.

67732753261 is a deficient number, since it is larger than the sum of its proper divisors (1833867563).

67732753261 is a wasteful number, since it uses less digits than its factorization.

67732753261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85631.

The product of its digits is 2222640, while the sum is 49.

The spelling of 67732753261 in words is "sixty-seven billion, seven hundred thirty-two million, seven hundred fifty-three thousand, two hundred sixty-one".