636322348148 has 6 divisors (see below), whose sum is σ = 1113564109266. Its totient is φ = 318161174072.

The previous prime is 636322348147. The next prime is 636322348267. The reversal of 636322348148 is 841843223636.

It can be written as a sum of positive squares in only one way, i.e., 611965127524 + 24357220624 = 782282^2 + 156068^2 .

It is a super-2 number, since 2×636322348148² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 636322348096 and 636322348105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636322348147) 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 as a sum of consecutive naturals, namely, 79540293515 + ... + 79540293522.

It is an arithmetic number, because the mean of its divisors is an integer number (185594018211).

Almost surely, 2^636322348148 is an apocalyptic number.

It is an amenable number.

636322348148 is a deficient number, since it is larger than the sum of its proper divisors (477241761118).

636322348148 is a wasteful number, since it uses less digits than its factorization.

636322348148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159080587041 (or 159080587039 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 50.

The spelling of 636322348148 in words is "six hundred thirty-six billion, three hundred twenty-two million, three hundred forty-eight thousand, one hundred forty-eight".