67152508491 has 8 divisors (see below), whose sum is σ = 89708535504. Its totient is φ = 44682410240.

The previous prime is 67152508483. The next prime is 67152508513. The reversal of 67152508491 is 19480525176.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67152508491 - 2³ = 67152508483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67152508491.

It is not an unprimeable number, because it can be changed into a prime (67152508391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21480366 + ... + 21483491.

It is an arithmetic number, because the mean of its divisors is an integer number (11213566938).

Almost surely, 2^67152508491 is an apocalyptic number.

67152508491 is a deficient number, since it is larger than the sum of its proper divisors (22556027013).

67152508491 is a wasteful number, since it uses less digits than its factorization.

67152508491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42964381.

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 67152508491 in words is "sixty-seven billion, one hundred fifty-two million, five hundred eight thousand, four hundred ninety-one".