499974578880 has 448 divisors, whose sum is σ = 1975542912000. Its totient is φ = 104531116032.

The previous prime is 499974578879. The next prime is 499974578891. The reversal of 499974578880 is 88875479994.

It is a tau number, because it is divible by the number of its divisors (448).

It is a junction number, because it is equal to n+sod(n) for n = 499974578796 and 499974578805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3635206 + ... + 3770234.

It is an arithmetic number, because the mean of its divisors is an integer number (4409694000).

Almost surely, 2^499974578880 is an apocalyptic number.

499974578880 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 499974578880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (987771456000).

499974578880 is an abundant number, since it is smaller than the sum of its proper divisors (1475568333120).

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

499974578880 is a wasteful number, since it uses less digits than its factorization.

499974578880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135104 (or 135094 counting only the distinct ones).

The product of its (nonzero) digits is 1463132160, while the sum is 78.

The spelling of 499974578880 in words is "four hundred ninety-nine billion, nine hundred seventy-four million, five hundred seventy-eight thousand, eight hundred eighty".