20475283458 has 32 divisors (see below), whose sum is σ = 46804890240. Its totient is φ = 5849550720.

The previous prime is 20475283447. The next prime is 20475283541. The reversal of 20475283458 is 85438257402.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 881838 + ... + 904758.

It is an arithmetic number, because the mean of its divisors is an integer number (1462652820).

Almost surely, 2^20475283458 is an apocalyptic number.

20475283458 is an abundant number, since it is smaller than the sum of its proper divisors (26329606782).

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

20475283458 is a wasteful number, since it uses less digits than its factorization.

20475283458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44202.

The product of its (nonzero) digits is 2150400, while the sum is 48.

The spelling of 20475283458 in words is "twenty billion, four hundred seventy-five million, two hundred eighty-three thousand, four hundred fifty-eight".