67518650752001 has 4 divisors (see below), whose sum is σ = 71490336090372. Its totient is φ = 63546965413632.

The previous prime is 67518650751971. The next prime is 67518650752013. The reversal of 67518650752001 is 10025705681576.

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 54817809249025 + 12700841502976 = 7403905^2 + 3563824^2 .

It is a cyclic number.

It is not a de Polignac number, because 67518650752001 - 2³⁴ = 67501470882817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67518650722001) 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, 1985842669160 + ... + 1985842669193.

It is an arithmetic number, because the mean of its divisors is an integer number (17872584022593).

Almost surely, 2^{67518650752001} is an apocalyptic number.

It is an amenable number.

67518650752001 is a deficient number, since it is larger than the sum of its proper divisors (3971685338371).

67518650752001 is a wasteful number, since it uses less digits than its factorization.

67518650752001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3971685338370.

The product of its (nonzero) digits is 3528000, while the sum is 53.

The spelling of 67518650752001 in words is "sixty-seven trillion, five hundred eighteen billion, six hundred fifty million, seven hundred fifty-two thousand, one".