22746773021721 has 8 divisors (see below), whose sum is σ = 34661749366464. Its totient is φ = 12998156012400.

The previous prime is 22746773021719. The next prime is 22746773021771. The reversal of 22746773021721 is 12712037764722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22746773021721 - 2¹ = 22746773021719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22746773021711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541589833830 + ... + 541589833871.

It is an arithmetic number, because the mean of its divisors is an integer number (4332718670808).

Almost surely, 2^{22746773021721} is an apocalyptic number.

22746773021721 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22746773021721 is a deficient number, since it is larger than the sum of its proper divisors (11914976344743).

22746773021721 is a wasteful number, since it uses less digits than its factorization.

22746773021721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083179667711.

The product of its (nonzero) digits is 2765952, while the sum is 51.

The spelling of 22746773021721 in words is "twenty-two trillion, seven hundred forty-six billion, seven hundred seventy-three million, twenty-one thousand, seven hundred twenty-one".