20634869854130 has 64 divisors (see below), whose sum is σ = 42785073192960. Its totient is φ = 7018784607744.

The previous prime is 20634869854129. The next prime is 20634869854133. The reversal of 20634869854130 is 3145896843602.

It is a self number, because there is not a number n which added to its sum of digits gives 20634869854130.

It is not an unprimeable number, because it can be changed into a prime (20634869854133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 274387814 + ... + 274463006.

It is an arithmetic number, because the mean of its divisors is an integer number (668516768640).

Almost surely, 2^{20634869854130} is an apocalyptic number.

20634869854130 is an abundant number, since it is smaller than the sum of its proper divisors (22150203338830).

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

20634869854130 is a wasteful number, since it uses less digits than its factorization.

20634869854130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106203.

The product of its (nonzero) digits is 29859840, while the sum is 59.

The spelling of 20634869854130 in words is "twenty trillion, six hundred thirty-four billion, eight hundred sixty-nine million, eight hundred fifty-four thousand, one hundred thirty".