499999998877 has 16 divisors (see below), whose sum is σ = 506229015600. Its totient is φ = 493802749440.

The previous prime is 499999998821. The next prime is 499999998881. The reversal of 499999998877 is 778899999994.

It can be written as a sum of positive squares in 8 ways, for example, as 15870708441 + 484129290436 = 125979^2 + 695794^2 .

It is a cyclic number.

It is not a de Polignac number, because 499999998877 - 2⁷ = 499999998749 is a prime.

It is a super-2 number, since 2×499999998877² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499999995877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73950177 + ... + 73956937.

It is an arithmetic number, because the mean of its divisors is an integer number (31639313475).

Almost surely, 2^499999998877 is an apocalyptic number.

It is an amenable number.

499999998877 is a deficient number, since it is larger than the sum of its proper divisors (6229016723).

499999998877 is a wasteful number, since it uses less digits than its factorization.

499999998877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8976.

The product of its digits is 59997563136, while the sum is 97.

The spelling of 499999998877 in words is "four hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-eight thousand, eight hundred seventy-seven".