467991835781 has 2 divisors, whose sum is σ = 467991835782. Its totient is φ = 467991835780.

The previous prime is 467991835777. The next prime is 467991835847. The reversal of 467991835781 is 187538199764.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324552393025 + 143439442756 = 569695^2 + 378734^2 .

It is a cyclic number.

It is not a de Polignac number, because 467991835781 - 2² = 467991835777 is a prime.

It is a super-2 number, since 2×467991835781² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (467991835711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 233995917890 + 233995917891.

It is an arithmetic number, because the mean of its divisors is an integer number (233995917891).

Almost surely, 2^467991835781 is an apocalyptic number.

It is an amenable number.

467991835781 is a deficient number, since it is larger than the sum of its proper divisors (1).

467991835781 is an equidigital number, since it uses as much as digits as its factorization.

467991835781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91445760, while the sum is 68.

The spelling of 467991835781 in words is "four hundred sixty-seven billion, nine hundred ninety-one million, eight hundred thirty-five thousand, seven hundred eighty-one".