485456381999 has 2 divisors, whose sum is σ = 485456382000. Its totient is φ = 485456381998.

The previous prime is 485456381983. The next prime is 485456382049. The reversal of 485456381999 is 999183654584.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 485456381999 - 2⁴ = 485456381983 is a prime.

It is a super-2 number, since 2×485456381999² (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 (485456384999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242728190999 + 242728191000.

It is an arithmetic number, because the mean of its divisors is an integer number (242728191000).

Almost surely, 2^485456381999 is an apocalyptic number.

485456381999 is a deficient number, since it is larger than the sum of its proper divisors (1).

485456381999 is an equidigital number, since it uses as much as digits as its factorization.

485456381999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 335923200, while the sum is 71.

The spelling of 485456381999 in words is "four hundred eighty-five billion, four hundred fifty-six million, three hundred eighty-one thousand, nine hundred ninety-nine".