20574984798 has 40 divisors (see below), whose sum is σ = 47084143392. Its totient is φ = 6712403904.

The previous prime is 20574984733. The next prime is 20574984799. The reversal of 20574984798 is 89748947502.

20574984798 is a `hidden beast` number, since 2 + 0 + 5 + 74 + 98 + 479 + 8 = 666.

It is a super-2 number, since 2×20574984798² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20574984799) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 1343515 + ... + 1358742.

Almost surely, 2^20574984798 is an apocalyptic number.

20574984798 is an abundant number, since it is smaller than the sum of its proper divisors (26509158594).

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

20574984798 is a wasteful number, since it uses less digits than its factorization.

20574984798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702318 (or 2702309 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 63.

The spelling of 20574984798 in words is "twenty billion, five hundred seventy-four million, nine hundred eighty-four thousand, seven hundred ninety-eight".