490879351920 has 160 divisors (see below), whose sum is σ = 1566760345920. Its totient is φ = 127059681280.

The previous prime is 490879351913. The next prime is 490879351927. The reversal of 490879351920 is 29153978094.

It is an interprime number because it is at equal distance from previous prime (490879351913) and next prime (490879351927).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490879351927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1811866 + ... + 2065094.

It is an arithmetic number, because the mean of its divisors is an integer number (9792252162).

Almost surely, 2^490879351920 is an apocalyptic number.

490879351920 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 490879351920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (783380172960).

490879351920 is an abundant number, since it is smaller than the sum of its proper divisors (1075880994000).

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

490879351920 is a wasteful number, since it uses less digits than its factorization.

490879351920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253483 (or 253477 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 57.

The spelling of 490879351920 in words is "four hundred ninety billion, eight hundred seventy-nine million, three hundred fifty-one thousand, nine hundred twenty".