499638154752 has 480 divisors, whose sum is σ = 1638828322560. Its totient is φ = 145152000000.

The previous prime is 499638154721. The next prime is 499638154787. The reversal of 499638154752 is 257451836994.

499638154752 is a `hidden beast` number, since 4 + 9 + 9 + 6 + 3 + 81 + 547 + 5 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 499638154752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 221961627 + ... + 221963877.

It is an arithmetic number, because the mean of its divisors is an integer number (3414225672).

Almost surely, 2^499638154752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499638154752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (819414161280).

499638154752 is an abundant number, since it is smaller than the sum of its proper divisors (1139190167808).

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

499638154752 is a wasteful number, since it uses less digits than its factorization.

499638154752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466 (or 2447 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 63.

The spelling of 499638154752 in words is "four hundred ninety-nine billion, six hundred thirty-eight million, one hundred fifty-four thousand, seven hundred fifty-two".