5120137668678 has 8 divisors (see below), whose sum is σ = 10240275337368. Its totient is φ = 1706712556224.

The previous prime is 5120137668647. The next prime is 5120137668721. The reversal of 5120137668678 is 8768667310215.

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

5120137668678 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426678139051 + ... + 426678139062.

It is an arithmetic number, because the mean of its divisors is an integer number (1280034417171).

Almost surely, 2^{5120137668678} is an apocalyptic number.

5120137668678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

5120137668678 is a wasteful number, since it uses less digits than its factorization.

5120137668678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853356278118.

The product of its (nonzero) digits is 20321280, while the sum is 60.

The spelling of 5120137668678 in words is "five trillion, one hundred twenty billion, one hundred thirty-seven million, six hundred sixty-eight thousand, six hundred seventy-eight".