67816917492 has 48 divisors (see below), whose sum is σ = 160535313792. Its totient is φ = 22277928960.

The previous prime is 67816917491. The next prime is 67816917503. The reversal of 67816917492 is 29471961876.

67816917492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×67816917492³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67816917491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2193888 + ... + 2224584.

It is an arithmetic number, because the mean of its divisors is an integer number (3344485704).

Almost surely, 2^67816917492 is an apocalyptic number.

It is an amenable number.

67816917492 is an abundant number, since it is smaller than the sum of its proper divisors (92718396300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67816917492 is a wasteful number, since it uses less digits than its factorization.

67816917492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33368 (or 33366 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 60.

The spelling of 67816917492 in words is "sixty-seven billion, eight hundred sixteen million, nine hundred seventeen thousand, four hundred ninety-two".