67546506849 has 4 divisors (see below), whose sum is σ = 90062009136. Its totient is φ = 45031004564.

The previous prime is 67546506817. The next prime is 67546506931. The reversal of 67546506849 is 94860564576.

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 not a de Polignac number, because 67546506849 - 2⁵ = 67546506817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67546506792 and 67546506801.

It is not an unprimeable number, because it can be changed into a prime (67546501849) 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, 11257751139 + ... + 11257751144.

It is an arithmetic number, because the mean of its divisors is an integer number (22515502284).

Almost surely, 2^67546506849 is an apocalyptic number.

It is an amenable number.

67546506849 is a deficient number, since it is larger than the sum of its proper divisors (22515502287).

67546506849 is a wasteful number, since it uses less digits than its factorization.

67546506849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22515502286.

The product of its (nonzero) digits is 43545600, while the sum is 60.

The spelling of 67546506849 in words is "sixty-seven billion, five hundred forty-six million, five hundred six thousand, eight hundred forty-nine".