20146875484 has 48 divisors (see below), whose sum is σ = 37694942208. Its totient is φ = 9399031488.

The previous prime is 20146875451. The next prime is 20146875493. The reversal of 20146875484 is 48457864102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3466509 + ... + 3472315.

It is an arithmetic number, because the mean of its divisors is an integer number (785311296).

Almost surely, 2^20146875484 is an apocalyptic number.

It is an amenable number.

20146875484 is a deficient number, since it is larger than the sum of its proper divisors (17548066724).

20146875484 is a wasteful number, since it uses less digits than its factorization.

20146875484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754 (or 6752 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 49.

The spelling of 20146875484 in words is "twenty billion, one hundred forty-six million, eight hundred seventy-five thousand, four hundred eighty-four".