100448000643 has 4 divisors (see below), whose sum is σ = 133930667528. Its totient is φ = 66965333760.

The previous prime is 100448000633. The next prime is 100448000677. The reversal of 100448000643 is 346000844001.

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

It is not a de Polignac number, because 100448000643 - 2²¹ = 100445903491 is a prime.

It is a super-2 number, since 2×100448000643² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100448000643.

It is not an unprimeable number, because it can be changed into a prime (100448000633) 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, 16741333438 + ... + 16741333443.

It is an arithmetic number, because the mean of its divisors is an integer number (33482666882).

Almost surely, 2^100448000643 is an apocalyptic number.

100448000643 is a deficient number, since it is larger than the sum of its proper divisors (33482666885).

100448000643 is an equidigital number, since it uses as much as digits as its factorization.

100448000643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33482666884.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 100448000643 its reverse (346000844001), we get a palindrome (446448844644).

The spelling of 100448000643 in words is "one hundred billion, four hundred forty-eight million, six hundred forty-three", and thus it is an aban number.