5018785816551 has 16 divisors (see below), whose sum is σ = 7206536176224. Its totient is φ = 3088451654784.

The previous prime is 5018785816529. The next prime is 5018785816657. The reversal of 5018785816551 is 1556185878105.

It is not a de Polignac number, because 5018785816551 - 2¹⁴ = 5018785800167 is a prime.

It is a super-2 number, since 2×5018785816551² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5018785816511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3483865 + ... + 4709021.

It is an arithmetic number, because the mean of its divisors is an integer number (450408511014).

Almost surely, 2^{5018785816551} is an apocalyptic number.

5018785816551 is a deficient number, since it is larger than the sum of its proper divisors (2187750359673).

5018785816551 is a wasteful number, since it uses less digits than its factorization.

5018785816551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330210.

The product of its (nonzero) digits is 13440000, while the sum is 60.

The spelling of 5018785816551 in words is "five trillion, eighteen billion, seven hundred eighty-five million, eight hundred sixteen thousand, five hundred fifty-one".