499229257681840 has 160 divisors (see below), whose sum is σ = 1369333077073920. Its totient is φ = 165640644403200.

The previous prime is 499229257681801. The next prime is 499229257681859. The reversal of 499229257681840 is 48186752922994.

It is a super-2 number, since 2×499229257681840² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1719206581 + ... + 1719496939.

It is an arithmetic number, because the mean of its divisors is an integer number (8558331731712).

Almost surely, 2^{499229257681840} is an apocalyptic number.

499229257681840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

499229257681840 is an abundant number, since it is smaller than the sum of its proper divisors (870103819392080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499229257681840 is a wasteful number, since it uses less digits than its factorization.

499229257681840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389451 (or 389445 counting only the distinct ones).

The product of its (nonzero) digits is 1254113280, while the sum is 76.

The spelling of 499229257681840 in words is "four hundred ninety-nine trillion, two hundred twenty-nine billion, two hundred fifty-seven million, six hundred eighty-one thousand, eight hundred forty".