499667768064 has 288 divisors, whose sum is σ = 1583539453440. Its totient is φ = 155006742528.

The previous prime is 499667768059. The next prime is 499667768099. The reversal of 499667768064 is 460867766994.

499667768064 is a `hidden beast` number, since 499 + 6 + 6 + 7 + 76 + 8 + 0 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 499667767983 and 499667768001.

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, 5839639 + ... + 5924585.

It is an arithmetic number, because the mean of its divisors is an integer number (5498400880).

Almost surely, 2^499667768064 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 499667768064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (791769726720).

499667768064 is an abundant number, since it is smaller than the sum of its proper divisors (1083871685376).

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

499667768064 is a wasteful number, since it uses less digits than its factorization.

499667768064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85032 (or 85012 counting only the distinct ones).

The product of its (nonzero) digits is 658409472, while the sum is 72.

The spelling of 499667768064 in words is "four hundred ninety-nine billion, six hundred sixty-seven million, seven hundred sixty-eight thousand, sixty-four".