494438400001 has 32 divisors (see below), whose sum is σ = 618658347776. Its totient is φ = 384702048000.

The previous prime is 494438399999. The next prime is 494438400023. The reversal of 494438400001 is 100004834494.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 494438400001 - 2¹ = 494438399999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (494438400061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34470091 + ... + 34484431.

It is an arithmetic number, because the mean of its divisors is an integer number (19333073368).

Almost surely, 2^494438400001 is an apocalyptic number.

It is an amenable number.

494438400001 is a deficient number, since it is larger than the sum of its proper divisors (124219947775).

494438400001 is a wasteful number, since it uses less digits than its factorization.

494438400001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20633.

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 494438400001 in words is "four hundred ninety-four billion, four hundred thirty-eight million, four hundred thousand, one".