5128555155390 has 48 divisors (see below), whose sum is σ = 13913993122848. Its totient is φ = 1308153198528.

The previous prime is 5128555155371. The next prime is 5128555155421. The reversal of 5128555155390 is 935515558215.

It is a happy number.

5128555155390 is a `hidden beast` number, since 5 + 1 + 2 + 8 + 5 + 551 + 55 + 39 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1238779369 + ... + 1238783508.

It is an arithmetic number, because the mean of its divisors is an integer number (289874856726).

Almost surely, 2^{5128555155390} is an apocalyptic number.

5128555155390 is an abundant number, since it is smaller than the sum of its proper divisors (8785437967458).

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

5128555155390 is a wasteful number, since it uses less digits than its factorization.

5128555155390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477562913 (or 2477562910 counting only the distinct ones).

The product of its (nonzero) digits is 6750000, while the sum is 54.

The spelling of 5128555155390 in words is "five trillion, one hundred twenty-eight billion, five hundred fifty-five million, one hundred fifty-five thousand, three hundred ninety".