21802827350 has 24 divisors (see below), whose sum is σ = 40646955720. Its totient is φ = 8700981120.

The previous prime is 21802827331. The next prime is 21802827359. The reversal of 21802827350 is 5372820812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21802827359) 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, 481880 + ... + 525179.

It is an arithmetic number, because the mean of its divisors is an integer number (1693623155).

Almost surely, 2^21802827350 is an apocalyptic number.

21802827350 is a deficient number, since it is larger than the sum of its proper divisors (18844128370).

21802827350 is a wasteful number, since it uses less digits than its factorization.

21802827350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007504 (or 1007499 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 21802827350 in words is "twenty-one billion, eight hundred two million, eight hundred twenty-seven thousand, three hundred fifty".