494852379840 has 3360 divisors, whose sum is σ = 2447471847744. Its totient is φ = 93640458240.

The previous prime is 494852379817. The next prime is 494852379841. The reversal of 494852379840 is 48973258494.

494852379840 is a `hidden beast` number, since 4 + 9 + 485 + 2 + 3 + 79 + 84 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3360).

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 (494852379841) by changing a digit.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 11508194859 + ... + 11508194901.

Almost surely, 2^494852379840 is an apocalyptic number.

494852379840 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 494852379840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1223735923872).

494852379840 is an abundant number, since it is smaller than the sum of its proper divisors (1952619467904).

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

494852379840 is a wasteful number, since it uses less digits than its factorization.

494852379840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 63.

The spelling of 494852379840 in words is "four hundred ninety-four billion, eight hundred fifty-two million, three hundred seventy-nine thousand, eight hundred forty".