22764621001 has 8 divisors (see below), whose sum is σ = 24124642344. Its totient is φ = 21406924800.

The previous prime is 22764620953. The next prime is 22764621007. The reversal of 22764621001 is 10012646722.

It can be written as a sum of positive squares in 4 ways, for example, as 16476289600 + 6288331401 = 128360^2 + 79299^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22764621001 - 2²³ = 22756232393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22764621007) 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, 561100 + ... + 600301.

It is an arithmetic number, because the mean of its divisors is an integer number (3015580293).

Almost surely, 2^22764621001 is an apocalyptic number.

It is an amenable number.

22764621001 is a deficient number, since it is larger than the sum of its proper divisors (1360021343).

22764621001 is a wasteful number, since it uses less digits than its factorization.

22764621001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162571.

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 22764621001 in words is "twenty-two billion, seven hundred sixty-four million, six hundred twenty-one thousand, one".