2150821805430 has 16 divisors (see below), whose sum is σ = 5161972333104. Its totient is φ = 573552481440.

The previous prime is 2150821805423. The next prime is 2150821805441. The reversal of 2150821805430 is 345081280512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35847030061 + ... + 35847030120.

It is an arithmetic number, because the mean of its divisors is an integer number (322623270819).

Almost surely, 2^{2150821805430} is an apocalyptic number.

2150821805430 is an abundant number, since it is smaller than the sum of its proper divisors (3011150527674).

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

2150821805430 is a wasteful number, since it uses less digits than its factorization.

2150821805430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71694060191.

The product of its (nonzero) digits is 76800, while the sum is 39.

The spelling of 2150821805430 in words is "two trillion, one hundred fifty billion, eight hundred twenty-one million, eight hundred five thousand, four hundred thirty".