494844577920 has 2304 divisors, whose sum is σ = 2335963069440. Its totient is φ = 97193779200.

The previous prime is 494844577919. The next prime is 494844577921. The reversal of 494844577920 is 29775448494.

494844577920 is a `hidden beast` number, since 4 + 94 + 8 + 4 + 457 + 7 + 92 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (494844577919) and next prime (494844577921).

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

It is not an unprimeable number, because it can be changed into a prime (494844577921) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 11508013419 + ... + 11508013461.

It is an arithmetic number, because the mean of its divisors is an integer number (1013872860).

Almost surely, 2^494844577920 is an apocalyptic number.

494844577920 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 494844577920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1167981534720).

494844577920 is an abundant number, since it is smaller than the sum of its proper divisors (1841118491520).

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

494844577920 is a wasteful number, since it uses less digits than its factorization.

494844577920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 63.

The spelling of 494844577920 in words is "four hundred ninety-four billion, eight hundred forty-four million, five hundred seventy-seven thousand, nine hundred twenty".