481564440887 has 2 divisors, whose sum is σ = 481564440888. Its totient is φ = 481564440886.

The previous prime is 481564440869. The next prime is 481564440911. The reversal of 481564440887 is 788044465184.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 481564440887 - 2²⁸ = 481296005431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (481564449887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240782220443 + 240782220444.

It is an arithmetic number, because the mean of its divisors is an integer number (240782220444).

Almost surely, 2^481564440887 is an apocalyptic number.

481564440887 is a deficient number, since it is larger than the sum of its proper divisors (1).

481564440887 is an equidigital number, since it uses as much as digits as its factorization.

481564440887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27525120, while the sum is 59.

The spelling of 481564440887 in words is "four hundred eighty-one billion, five hundred sixty-four million, four hundred forty thousand, eight hundred eighty-seven".