2251764572722 has 128 divisors (see below), whose sum is σ = 4145119100928. Its totient is φ = 897165158400.

The previous prime is 2251764572693. The next prime is 2251764572723. The reversal of 2251764572722 is 2272754671522.

It is a self number, because there is not a number n which added to its sum of digits gives 2251764572722.

It is not an unprimeable number, because it can be changed into a prime (2251764572723) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 337440778 + ... + 337447450.

It is an arithmetic number, because the mean of its divisors is an integer number (32383742976).

Almost surely, 2^{2251764572722} is an apocalyptic number.

2251764572722 is a deficient number, since it is larger than the sum of its proper divisors (1893354528206).

2251764572722 is a wasteful number, since it uses less digits than its factorization.

2251764572722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7064.

The product of its digits is 6585600, while the sum is 52.

The spelling of 2251764572722 in words is "two trillion, two hundred fifty-one billion, seven hundred sixty-four million, five hundred seventy-two thousand, seven hundred twenty-two".