100511328538 has 8 divisors (see below), whose sum is σ = 154444236660. Its totient is φ = 49029916320.

The previous prime is 100511328473. The next prime is 100511328539. The reversal of 100511328538 is 835823115001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 100436384889 + 74943649 = 316917^2 + 8657^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 100511328497 and 100511328506.

It is not an unprimeable number, because it can be changed into a prime (100511328539) 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 3 ways as a sum of consecutive naturals, for example, 612873873 + ... + 612874036.

Almost surely, 2^100511328538 is an apocalyptic number.

100511328538 is a deficient number, since it is larger than the sum of its proper divisors (53932908122).

100511328538 is a wasteful number, since it uses less digits than its factorization.

100511328538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225747952.

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 100511328538 in words is "one hundred billion, five hundred eleven million, three hundred twenty-eight thousand, five hundred thirty-eight".