67201545493 has 4 divisors (see below), whose sum is σ = 70738468960. Its totient is φ = 63664622028.

The previous prime is 67201545487. The next prime is 67201545533. The reversal of 67201545493 is 39454510276.

It is a happy number.

67201545493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67201545493 is a prime.

It is a super-2 number, since 2×67201545493² (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 (67201540493) 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, 1768461705 + ... + 1768461742.

It is an arithmetic number, because the mean of its divisors is an integer number (17684617240).

Almost surely, 2^67201545493 is an apocalyptic number.

It is an amenable number.

67201545493 is a deficient number, since it is larger than the sum of its proper divisors (3536923467).

67201545493 is a wasteful number, since it uses less digits than its factorization.

67201545493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3536923466.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 67201545493 in words is "sixty-seven billion, two hundred one million, five hundred forty-five thousand, four hundred ninety-three".