464455543081 has 2 divisors, whose sum is σ = 464455543082. Its totient is φ = 464455543080.

The previous prime is 464455543067. The next prime is 464455543103. The reversal of 464455543081 is 180345554464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440651681856 + 23803861225 = 663816^2 + 154285^2 .

It is a cyclic number.

It is not a de Polignac number, because 464455543081 - 2²³ = 464447154473 is a prime.

It is a super-2 number, since 2×464455543081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (464455543021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232227771540 + 232227771541.

It is an arithmetic number, because the mean of its divisors is an integer number (232227771541).

Almost surely, 2^464455543081 is an apocalyptic number.

It is an amenable number.

464455543081 is a deficient number, since it is larger than the sum of its proper divisors (1).

464455543081 is an equidigital number, since it uses as much as digits as its factorization.

464455543081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608000, while the sum is 49.

The spelling of 464455543081 in words is "four hundred sixty-four billion, four hundred fifty-five million, five hundred forty-three thousand, eighty-one".