452768657881 has 2 divisors, whose sum is σ = 452768657882. Its totient is φ = 452768657880.

The previous prime is 452768657857. The next prime is 452768657917. The reversal of 452768657881 is 188756867254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 424843240000 + 27925417881 = 651800^2 + 167109^2 .

It is a cyclic number.

It is not a de Polignac number, because 452768657881 - 2⁵ = 452768657849 is a prime.

It is a super-2 number, since 2×452768657881² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (452768654881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226384328940 + 226384328941.

It is an arithmetic number, because the mean of its divisors is an integer number (226384328941).

Almost surely, 2^452768657881 is an apocalyptic number.

It is an amenable number.

452768657881 is a deficient number, since it is larger than the sum of its proper divisors (1).

452768657881 is an equidigital number, since it uses as much as digits as its factorization.

452768657881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180633600, while the sum is 67.

The spelling of 452768657881 in words is "four hundred fifty-two billion, seven hundred sixty-eight million, six hundred fifty-seven thousand, eight hundred eighty-one".