100528872638 has 4 divisors (see below), whose sum is σ = 150793308960. Its totient is φ = 50264436318.

The previous prime is 100528872607. The next prime is 100528872701. The reversal of 100528872638 is 836278825001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25132218158 + ... + 25132218161.

It is an arithmetic number, because the mean of its divisors is an integer number (37698327240).

Almost surely, 2^100528872638 is an apocalyptic number.

100528872638 is a deficient number, since it is larger than the sum of its proper divisors (50264436322).

100528872638 is an equidigital number, since it uses as much as digits as its factorization.

100528872638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50264436321.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 100528872638 in words is "one hundred billion, five hundred twenty-eight million, eight hundred seventy-two thousand, six hundred thirty-eight".