499994133760 has 144 divisors (see below), whose sum is σ = 1307094667200. Its totient is φ = 181735915520.

The previous prime is 499994133733. The next prime is 499994133767. The reversal of 499994133760 is 67331499994.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a junction number, because it is equal to n+sod(n) for n = 499994133692 and 499994133701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499994133767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38755791 + ... + 38768689.

It is an arithmetic number, because the mean of its divisors is an integer number (9077046300).

Almost surely, 2^499994133760 is an apocalyptic number.

499994133760 is a gapful number since it is divisible by the number (40) 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 499994133760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653547333600).

499994133760 is an abundant number, since it is smaller than the sum of its proper divisors (807100533440).

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

499994133760 is a wasteful number, since it uses less digits than its factorization.

499994133760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15684 (or 15670 counting only the distinct ones).

The product of its (nonzero) digits is 39680928, while the sum is 64.

The spelling of 499994133760 in words is "four hundred ninety-nine billion, nine hundred ninety-four million, one hundred thirty-three thousand, seven hundred sixty".