499999898259 has 24 divisors (see below), whose sum is σ = 728350608960. Its totient is φ = 330515450928.

The previous prime is 499999898239. The next prime is 499999898269. The reversal of 499999898259 is 952898999994.

499999898259 is a `hidden beast` number, since 499 + 9 + 9 + 9 + 8 + 98 + 25 + 9 = 666.

It is not a de Polignac number, because 499999898259 - 2¹⁹ = 499999373971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (499999898219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111804 + ... + 1006230.

It is an arithmetic number, because the mean of its divisors is an integer number (30347942040).

Almost surely, 2^499999898259 is an apocalyptic number.

499999898259 is a deficient number, since it is larger than the sum of its proper divisors (228350710701).

499999898259 is a wasteful number, since it uses less digits than its factorization.

499999898259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894959 (or 894956 counting only the distinct ones).

The product of its digits is 12244400640, while the sum is 90.

The spelling of 499999898259 in words is "four hundred ninety-nine billion, nine hundred ninety-nine million, eight hundred ninety-eight thousand, two hundred fifty-nine".