67538112545 has 16 divisors (see below), whose sum is σ = 81223369920. Its totient is φ = 53912182464.

The previous prime is 67538112529. The next prime is 67538112559. The reversal of 67538112545 is 54521183576.

67538112545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 67538112545 - 2⁴ = 67538112529 is a prime.

It is a super-2 number, since 2×67538112545² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67538112545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5572382 + ... + 5584488.

It is an arithmetic number, because the mean of its divisors is an integer number (5076460620).

Almost surely, 2^67538112545 is an apocalyptic number.

It is an amenable number.

67538112545 is a deficient number, since it is larger than the sum of its proper divisors (13685257375).

67538112545 is a wasteful number, since it uses less digits than its factorization.

67538112545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14464.

The product of its digits is 1008000, while the sum is 47.

The spelling of 67538112545 in words is "sixty-seven billion, five hundred thirty-eight million, one hundred twelve thousand, five hundred forty-five".