494801495478 has 96 divisors (see below), whose sum is σ = 1141779693600. Its totient is φ = 160503171840.

The previous prime is 494801495459. The next prime is 494801495521. The reversal of 494801495478 is 874594108494.

494801495478 is a `hidden beast` number, since 4 + 9 + 4 + 80 + 1 + 4 + 9 + 547 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7879348 + ... + 7941896.

It is an arithmetic number, because the mean of its divisors is an integer number (11893538475).

Almost surely, 2^494801495478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 494801495478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (570889846800).

494801495478 is an abundant number, since it is smaller than the sum of its proper divisors (646978198122).

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

494801495478 is a wasteful number, since it uses less digits than its factorization.

494801495478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63004 (or 62992 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 63.

The spelling of 494801495478 in words is "four hundred ninety-four billion, eight hundred one million, four hundred ninety-five thousand, four hundred seventy-eight".