22746490817921 has 32 divisors (see below), whose sum is σ = 26348223283200. Its totient is φ = 19458017156160.

The previous prime is 22746490817899. The next prime is 22746490817923. The reversal of 22746490817921 is 12971809464722.

It is a cyclic number.

It is not a de Polignac number, because 22746490817921 - 2⁶ = 22746490817857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22746490817923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21196820 + ... + 22244058.

It is an arithmetic number, because the mean of its divisors is an integer number (823381977600).

Almost surely, 2^{22746490817921} is an apocalyptic number.

It is an amenable number.

22746490817921 is a deficient number, since it is larger than the sum of its proper divisors (3601732465279).

22746490817921 is a wasteful number, since it uses less digits than its factorization.

22746490817921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049189.

The product of its (nonzero) digits is 24385536, while the sum is 62.

The spelling of 22746490817921 in words is "twenty-two trillion, seven hundred forty-six billion, four hundred ninety million, eight hundred seventeen thousand, nine hundred twenty-one".