1563408798 has 48 divisors (see below), whose sum is σ = 3640726800. Its totient is φ = 446269824.

The previous prime is 1563408751. The next prime is 1563408809. The reversal of 1563408798 is 8978043651.

It is a super-3 number, since 3×1563408798³ (a number of 29 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1563408798.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 453690 + ... + 457122.

It is an arithmetic number, because the mean of its divisors is an integer number (75848475).

Almost surely, 2^1563408798 is an apocalyptic number.

1563408798 is an abundant number, since it is smaller than the sum of its proper divisors (2077318002).

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

1563408798 is a wasteful number, since it uses less digits than its factorization.

1563408798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001 (or 4994 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 1563408798 is about 39539.9645675107. The cubic root of 1563408798 is about 1160.6221390212.

The spelling of 1563408798 in words is "one billion, five hundred sixty-three million, four hundred eight thousand, seven hundred ninety-eight".