494280057840 has 80 divisors (see below), whose sum is σ = 1622401615008. Its totient is φ = 124054601728.

The previous prime is 494280057809. The next prime is 494280057913. The reversal of 494280057840 is 48750082494.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60569457 + ... + 60577616.

Almost surely, 2^494280057840 is an apocalyptic number.

494280057840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

494280057840 is an abundant number, since it is smaller than the sum of its proper divisors (1128121557168).

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

494280057840 is a wasteful number, since it uses less digits than its factorization.

494280057840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121147106 (or 121147100 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 494280057840 in words is "four hundred ninety-four billion, two hundred eighty million, fifty-seven thousand, eight hundred forty".