210128732802 has 24 divisors (see below), whose sum is σ = 455467849200. Its totient is φ = 70013845080.

The previous prime is 210128732797. The next prime is 210128732809. The reversal of 210128732802 is 208237821012.

It is not an unprimeable number, because it can be changed into a prime (210128732809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2377552 + ... + 2464347.

It is an arithmetic number, because the mean of its divisors is an integer number (18977827050).

Almost surely, 2^210128732802 is an apocalyptic number.

210128732802 is an abundant number, since it is smaller than the sum of its proper divisors (245339116398).

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

210128732802 is a wasteful number, since it uses less digits than its factorization.

210128732802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4844318 (or 4844315 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 210128732802 in words is "two hundred ten billion, one hundred twenty-eight million, seven hundred thirty-two thousand, eight hundred two".