499254284885664 has 384 divisors, whose sum is σ = 1670223830188032. Its totient is φ = 126800509271040.

The previous prime is 499254284885651. The next prime is 499254284885683. The reversal of 499254284885664 is 466588482452994.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 376988887 + ... + 378310889.

It is an arithmetic number, because the mean of its divisors is an integer number (4349541224448).

Almost surely, 2^{499254284885664} is an apocalyptic number.

499254284885664 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499254284885664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (835111915094016).

499254284885664 is an abundant number, since it is smaller than the sum of its proper divisors (1170969545302368).

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

499254284885664 is a wasteful number, since it uses less digits than its factorization.

499254284885664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323168 (or 1323160 counting only the distinct ones).

The product of its digits is 38220595200, while the sum is 84.

The spelling of 499254284885664 in words is "four hundred ninety-nine trillion, two hundred fifty-four billion, two hundred eighty-four million, eight hundred eighty-five thousand, six hundred sixty-four".