215804903050 has 24 divisors (see below), whose sum is σ = 437887768032. Its totient is φ = 78474510000.

The previous prime is 215804903023. The next prime is 215804903057. The reversal of 215804903050 is 50309408512.

It is not an unprimeable number, because it can be changed into a prime (215804903057) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 196185726 + ... + 196186825.

It is an arithmetic number, because the mean of its divisors is an integer number (18245323668).

Almost surely, 2^215804903050 is an apocalyptic number.

215804903050 is an abundant number, since it is smaller than the sum of its proper divisors (222082864982).

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

215804903050 is a wasteful number, since it uses less digits than its factorization.

215804903050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392372574 (or 392372569 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 215804903050 in words is "two hundred fifteen billion, eight hundred four million, nine hundred three thousand, fifty".