494253810840 has 32 divisors (see below), whose sum is σ = 1482761432880. Its totient is φ = 131801016192.

The previous prime is 494253810833. The next prime is 494253810857. The reversal of 494253810840 is 48018352494.

It is a self number, because there is not a number n which added to its sum of digits gives 494253810840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2059390759 + ... + 2059390998.

Almost surely, 2^494253810840 is an apocalyptic number.

494253810840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

494253810840 is an abundant number, since it is smaller than the sum of its proper divisors (988507622040).

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

494253810840 is a wasteful number, since it uses less digits than its factorization.

494253810840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4118781771 (or 4118781767 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

It can be divided in two parts, 4942538 and 10840, that added together give a triangular number (4953378 = T₃₁₄₇).

The spelling of 494253810840 in words is "four hundred ninety-four billion, two hundred fifty-three million, eight hundred ten thousand, eight hundred forty".