21967449274 has 16 divisors (see below), whose sum is σ = 33573686976. Its totient is φ = 10777687200.

The previous prime is 21967449227. The next prime is 21967449277. The reversal of 21967449274 is 47294476912.

It is not an unprimeable number, because it can be changed into a prime (21967449277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336627 + ... + 396550.

It is an arithmetic number, because the mean of its divisors is an integer number (2098355436).

Almost surely, 2^21967449274 is an apocalyptic number.

21967449274 is a deficient number, since it is larger than the sum of its proper divisors (11606237702).

21967449274 is a wasteful number, since it uses less digits than its factorization.

21967449274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733461.

The product of its digits is 6096384, while the sum is 55.

The spelling of 21967449274 in words is "twenty-one billion, nine hundred sixty-seven million, four hundred forty-nine thousand, two hundred seventy-four".