213128492870524 has 96 divisors (see below), whose sum is σ = 468861896143872. Its totient is φ = 82351205760000.

The previous prime is 213128492870497. The next prime is 213128492870537. The reversal of 213128492870524 is 425078294821312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16379529 + ... + 26354239.

It is an arithmetic number, because the mean of its divisors is an integer number (4883978084832).

Almost surely, 2^{213128492870524} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213128492870524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234430948071936).

213128492870524 is an abundant number, since it is smaller than the sum of its proper divisors (255733403273348).

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

213128492870524 is a wasteful number, since it uses less digits than its factorization.

213128492870524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9975307 (or 9975305 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 58.

The spelling of 213128492870524 in words is "two hundred thirteen trillion, one hundred twenty-eight billion, four hundred ninety-two million, eight hundred seventy thousand, five hundred twenty-four".