5551111731678 has 16 divisors (see below), whose sum is σ = 11584928831616. Its totient is φ = 1769919682520.

The previous prime is 5551111731601. The next prime is 5551111731691. The reversal of 5551111731678 is 8761371111555.

It is a super-3 number, since 3×5551111731678³ (a number of 39 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5551111731678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20112723528 + ... + 20112723803.

It is an arithmetic number, because the mean of its divisors is an integer number (724058051976).

Almost surely, 2^{5551111731678} is an apocalyptic number.

5551111731678 is an abundant number, since it is smaller than the sum of its proper divisors (6033817099938).

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

5551111731678 is a wasteful number, since it uses less digits than its factorization.

5551111731678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40225447359.

The product of its digits is 882000, while the sum is 51.

The spelling of 5551111731678 in words is "five trillion, five hundred fifty-one billion, one hundred eleven million, seven hundred thirty-one thousand, six hundred seventy-eight".