499938085969 has 9 divisors (see below), whose sum is σ = 581566388187. Its totient is φ = 428514117024.

The previous prime is 499938085967. The next prime is 499938085981. The reversal of 499938085969 is 969580839994.

The square root of 499938085969 is 707063.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 21627525969 + 478310560000 = 147063^2 + 691600^2 .

It is not a de Polignac number, because 499938085969 - 2¹ = 499938085967 is a prime.

It is a super-2 number, since 2×499938085969² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499938085967) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4898937 + ... + 4999945.

Almost surely, 2^499938085969 is an apocalyptic number.

499938085969 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

499938085969 is the 707063-rd square number.

499938085969 is the 353532-nd centered octagonal number.

It is an amenable number.

499938085969 is a deficient number, since it is larger than the sum of its proper divisors (81628302218).

499938085969 is an frugal number, since it uses more digits than its factorization.

499938085969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202032 (or 101016 counting only the distinct ones).

The product of its (nonzero) digits is 1360488960, while the sum is 79.

The spelling of 499938085969 in words is "four hundred ninety-nine billion, nine hundred thirty-eight million, eighty-five thousand, nine hundred sixty-nine".