678135138411 has 8 divisors (see below), whose sum is σ = 904184409744. Its totient is φ = 452087979680.

The previous prime is 678135138407. The next prime is 678135138427. The reversal of 678135138411 is 114831531876.

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 678135138411 - 2² = 678135138407 is a prime.

It is a super-2 number, since 2×678135138411² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (678135138211) 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, 515401 + ... + 1273541.

It is an arithmetic number, because the mean of its divisors is an integer number (113023051218).

Almost surely, 2^678135138411 is an apocalyptic number.

678135138411 is a deficient number, since it is larger than the sum of its proper divisors (226049271333).

678135138411 is a wasteful number, since it uses less digits than its factorization.

678135138411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056301.

The product of its digits is 483840, while the sum is 48.

The spelling of 678135138411 in words is "six hundred seventy-eight billion, one hundred thirty-five million, one hundred thirty-eight thousand, four hundred eleven".