67316723513 has 8 divisors (see below), whose sum is σ = 73212706056. Its totient is φ = 61523280000.

The previous prime is 67316723503. The next prime is 67316723581. The reversal of 67316723513 is 31532761376.

It can be written as a sum of positive squares in 4 ways, for example, as 1623445264 + 65693278249 = 40292^2 + 256307^2 .

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

It is not a de Polignac number, because 67316723513 - 2¹⁰ = 67316722489 is a prime.

It is a super-2 number, since 2×67316723513² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67316723503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25633388 + ... + 25636013.

It is an arithmetic number, because the mean of its divisors is an integer number (9151588257).

Almost surely, 2^67316723513 is an apocalyptic number.

It is an amenable number.

67316723513 is a deficient number, since it is larger than the sum of its proper divisors (5895982543).

67316723513 is a wasteful number, since it uses less digits than its factorization.

67316723513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51269515.

The product of its digits is 476280, while the sum is 44.

The spelling of 67316723513 in words is "sixty-seven billion, three hundred sixteen million, seven hundred twenty-three thousand, five hundred thirteen".