23211045043764 has 96 divisors (see below), whose sum is σ = 56628904550400. Its totient is φ = 7385565378048.

The previous prime is 23211045043709. The next prime is 23211045043799. The reversal of 23211045043764 is 46734054011232.

It is a super-2 number, since 2×23211045043764² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 478919397 + ... + 478967859.

It is an arithmetic number, because the mean of its divisors is an integer number (589884422400).

Almost surely, 2^{23211045043764} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23211045043764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28314452275200).

23211045043764 is an abundant number, since it is smaller than the sum of its proper divisors (33417859506636).

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

23211045043764 is a wasteful number, since it uses less digits than its factorization.

23211045043764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51989 (or 51987 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 42.

Adding to 23211045043764 its reverse (46734054011232), we get a palindrome (69945099054996).

The spelling of 23211045043764 in words is "twenty-three trillion, two hundred eleven billion, forty-five million, forty-three thousand, seven hundred sixty-four".