5121345231054 has 128 divisors (see below), whose sum is σ = 12710150328960. Its totient is φ = 1537363722240.

The previous prime is 5121345231019. The next prime is 5121345231073. The reversal of 5121345231054 is 4501325431215.

5121345231054 is a `hidden beast` number, since 5 + 1 + 21 + 3 + 4 + 523 + 105 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1232974 + ... + 3429710.

It is an arithmetic number, because the mean of its divisors is an integer number (99298049445).

Almost surely, 2^{5121345231054} is an apocalyptic number.

5121345231054 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5121345231054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6355075164480).

5121345231054 is an abundant number, since it is smaller than the sum of its proper divisors (7588805097906).

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

5121345231054 is a wasteful number, since it uses less digits than its factorization.

5121345231054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196814 (or 2196796 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 5121345231054 in words is "five trillion, one hundred twenty-one billion, three hundred forty-five million, two hundred thirty-one thousand, fifty-four".