468133781 has 2 divisors, whose sum is σ = 468133782. Its totient is φ = 468133780.

The previous prime is 468133751. The next prime is 468133793. The reversal of 468133781 is 187331864.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265527025 + 202606756 = 16295^2 + 14234^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-468133781 is a prime.

It is a super-2 number, since 2×468133781² = 438298473826711922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (468133711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234066890 + 234066891.

It is an arithmetic number, because the mean of its divisors is an integer number (234066891).

Almost surely, 2^468133781 is an apocalyptic number.

It is an amenable number.

468133781 is a deficient number, since it is larger than the sum of its proper divisors (1).

468133781 is an equidigital number, since it uses as much as digits as its factorization.

468133781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 468133781 is about 21636.3994463034. The cubic root of 468133781 is about 776.4675797581.

The spelling of 468133781 in words is "four hundred sixty-eight million, one hundred thirty-three thousand, seven hundred eighty-one".