168637414487 has 8 divisors (see below), whose sum is σ = 180195404400. Its totient is φ = 157261440384.

The previous prime is 168637414481. The next prime is 168637414489. The reversal of 168637414487 is 784414736861.

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 168637414487 - 2⁶ = 168637414423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168637414481) 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, 45502037 + ... + 45505742.

It is an arithmetic number, because the mean of its divisors is an integer number (22524425550).

Almost surely, 2^168637414487 is an apocalyptic number.

168637414487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

168637414487 is a deficient number, since it is larger than the sum of its proper divisors (11557989913).

168637414487 is a wasteful number, since it uses less digits than its factorization.

168637414487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91007905.

The product of its digits is 21676032, while the sum is 59.

The spelling of 168637414487 in words is "one hundred sixty-eight billion, six hundred thirty-seven million, four hundred fourteen thousand, four hundred eighty-seven".