498790923840 has 840 divisors, whose sum is σ = 1960096501440. Its totient is φ = 120309995520.

The previous prime is 498790923811. The next prime is 498790923859. The reversal of 498790923840 is 48329097894.

498790923840 is a `hidden beast` number, since 4 + 9 + 87 + 90 + 92 + 384 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1125938659 + ... + 1125939101.

It is an arithmetic number, because the mean of its divisors is an integer number (2333448216).

Almost surely, 2^498790923840 is an apocalyptic number.

498790923840 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 498790923840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (980048250720).

498790923840 is an abundant number, since it is smaller than the sum of its proper divisors (1461305577600).

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

498790923840 is a wasteful number, since it uses less digits than its factorization.

498790923840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 498790923840 in words is "four hundred ninety-eight billion, seven hundred ninety million, nine hundred twenty-three thousand, eight hundred forty".