27722320450 has 48 divisors (see below), whose sum is σ = 57312510336. Its totient is φ = 9890628800.

The previous prime is 27722320433. The next prime is 27722320453. The reversal of 27722320450 is 5402322772.

It is a super-2 number, since 2×27722320450² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27722320453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 446362 + ... + 504661.

It is an arithmetic number, because the mean of its divisors is an integer number (1194010632).

Almost surely, 2^27722320450 is an apocalyptic number.

27722320450 is an abundant number, since it is smaller than the sum of its proper divisors (29590189886).

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

27722320450 is a wasteful number, since it uses less digits than its factorization.

27722320450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951099 (or 951094 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 34.

The spelling of 27722320450 in words is "twenty-seven billion, seven hundred twenty-two million, three hundred twenty thousand, four hundred fifty".