636132723054 has 64 divisors (see below), whose sum is σ = 1291204800000. Its totient is φ = 208906396160.

The previous prime is 636132723053. The next prime is 636132723071. The reversal of 636132723054 is 450327231636.

It is a junction number, because it is equal to n+sod(n) for n = 636132722997 and 636132723015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636132723053) 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 31 ways as a sum of consecutive naturals, for example, 212113447 + ... + 212116445.

It is an arithmetic number, because the mean of its divisors is an integer number (20175075000).

Almost surely, 2^636132723054 is an apocalyptic number.

636132723054 is an abundant number, since it is smaller than the sum of its proper divisors (655072076946).

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

636132723054 is a wasteful number, since it uses less digits than its factorization.

636132723054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393.

The product of its (nonzero) digits is 544320, while the sum is 42.

The spelling of 636132723054 in words is "six hundred thirty-six billion, one hundred thirty-two million, seven hundred twenty-three thousand, fifty-four".