678450973411 has 8 divisors (see below), whose sum is σ = 714866728400. Its totient is φ = 642105999360.

The previous prime is 678450973399. The next prime is 678450973441. The reversal of 678450973411 is 114379054876.

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

It is a 23-Lehmer number, since φ(678450973411) divides (678450973411-1)²³.

It is a cyclic number.

It is not a de Polignac number, because 678450973411 - 2²³ = 678442584803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (678450973441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17675550 + ... + 17713891.

It is an arithmetic number, because the mean of its divisors is an integer number (89358341050).

Almost surely, 2^678450973411 is an apocalyptic number.

678450973411 is the 368362-nd centered decagonal number.

678450973411 is a deficient number, since it is larger than the sum of its proper divisors (36415754989).

678450973411 is a wasteful number, since it uses less digits than its factorization.

678450973411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35390469.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 678450973411 in words is "six hundred seventy-eight billion, four hundred fifty million, nine hundred seventy-three thousand, four hundred eleven".