67980627959513 has 4 divisors (see below), whose sum is σ = 67981845237300. Its totient is φ = 67979410681728.

The previous prime is 67980627959507. The next prime is 67980627959521. The reversal of 67980627959513 is 31595972608976.

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 24082211613769 + 43898416345744 = 4907363^2 + 6625588^2 .

It is a cyclic number.

It is not a de Polignac number, because 67980627959513 - 2¹⁰ = 67980627958489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67980627959813) 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, 608555120 + ... + 608666817.

It is an arithmetic number, because the mean of its divisors is an integer number (16995461309325).

Almost surely, 2^{67980627959513} is an apocalyptic number.

It is an amenable number.

67980627959513 is a deficient number, since it is larger than the sum of its proper divisors (1217277787).

67980627959513 is a wasteful number, since it uses less digits than its factorization.

67980627959513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217277786.

The product of its (nonzero) digits is 1543147200, while the sum is 77.

The spelling of 67980627959513 in words is "sixty-seven trillion, nine hundred eighty billion, six hundred twenty-seven million, nine hundred fifty-nine thousand, five hundred thirteen".