481564686431 has 2 divisors, whose sum is σ = 481564686432. Its totient is φ = 481564686430.

The previous prime is 481564686419. The next prime is 481564686439. The reversal of 481564686431 is 134686465184.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 481564686431 - 2²⁶ = 481497577567 is a prime.

It is a super-2 number, since 2×481564686431² (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 (481564686439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240782343215 + 240782343216.

It is an arithmetic number, because the mean of its divisors is an integer number (240782343216).

Almost surely, 2^481564686431 is an apocalyptic number.

481564686431 is a deficient number, since it is larger than the sum of its proper divisors (1).

481564686431 is an equidigital number, since it uses as much as digits as its factorization.

481564686431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13271040, while the sum is 56.

The spelling of 481564686431 in words is "four hundred eighty-one billion, five hundred sixty-four million, six hundred eighty-six thousand, four hundred thirty-one".