20148542628486 has 16 divisors (see below), whose sum is σ = 41234226775104. Its totient is φ = 6559990623144.

The previous prime is 20148542628463. The next prime is 20148542628517. The reversal of 20148542628486 is 68482624584102.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39047562976 + ... + 39047563491.

It is an arithmetic number, because the mean of its divisors is an integer number (2577139173444).

Almost surely, 2^{20148542628486} is an apocalyptic number.

20148542628486 is an abundant number, since it is smaller than the sum of its proper divisors (21085684146618).

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

20148542628486 is a wasteful number, since it uses less digits than its factorization.

20148542628486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78095126515.

The product of its (nonzero) digits is 47185920, while the sum is 60.

The spelling of 20148542628486 in words is "twenty trillion, one hundred forty-eight billion, five hundred forty-two million, six hundred twenty-eight thousand, four hundred eighty-six".