495319587840 has 880 divisors, whose sum is σ = 2213061548544. Its totient is φ = 102916915200.

The previous prime is 495319587827. The next prime is 495319587857. The reversal of 495319587840 is 48785913594.

495319587840 is a `hidden beast` number, since 4 + 9 + 5 + 3 + 1 + 9 + 587 + 8 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (880).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 31925685 + ... + 31941195.

Almost surely, 2^495319587840 is an apocalyptic number.

495319587840 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 495319587840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1106530774272).

495319587840 is an abundant number, since it is smaller than the sum of its proper divisors (1717741960704).

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

495319587840 is a wasteful number, since it uses less digits than its factorization.

495319587840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15566 (or 15539 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 495319587840 in words is "four hundred ninety-five billion, three hundred nineteen million, five hundred eighty-seven thousand, eight hundred forty".