499452577197561 has 12 divisors (see below), whose sum is σ = 776926231196388. Its totient is φ = 307355432121504.

The previous prime is 499452577197551. The next prime is 499452577197583. The reversal of 499452577197561 is 165791775254994.

499452577197561 is a `hidden beast` number, since 4 + 9 + 9 + 4 + 525 + 7 + 7 + 19 + 75 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 27727017266025 + 471725559931536 = 5265645^2 + 21719244^2 .

It is not a de Polignac number, because 499452577197561 - 2²⁹ = 499452040326649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (499452577197521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2134412722950 + ... + 2134412723183.

It is an arithmetic number, because the mean of its divisors is an integer number (64743852599699).

Almost surely, 2^{499452577197561} is an apocalyptic number.

It is an amenable number.

499452577197561 is a deficient number, since it is larger than the sum of its proper divisors (277473653998827).

499452577197561 is a wasteful number, since it uses less digits than its factorization.

499452577197561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4268825446152 (or 4268825446149 counting only the distinct ones).

The product of its digits is 6001128000, while the sum is 81.

The spelling of 499452577197561 in words is "four hundred ninety-nine trillion, four hundred fifty-two billion, five hundred seventy-seven million, one hundred ninety-seven thousand, five hundred sixty-one".