100040387728 has 40 divisors (see below), whose sum is σ = 197157872160. Its totient is φ = 49161319680.

The previous prime is 100040387723. The next prime is 100040387749. The reversal of 100040387728 is 827783040001.

It is not an unprimeable number, because it can be changed into a prime (100040387723) 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 7 ways as a sum of consecutive naturals, for example, 5557783 + ... + 5575753.

It is an arithmetic number, because the mean of its divisors is an integer number (4928946804).

Almost surely, 2^100040387728 is an apocalyptic number.

It is an amenable number.

100040387728 is a deficient number, since it is larger than the sum of its proper divisors (97117484432).

100040387728 is a wasteful number, since it uses less digits than its factorization.

100040387728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23935 (or 23929 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The spelling of 100040387728 in words is "one hundred billion, forty million, three hundred eighty-seven thousand, seven hundred twenty-eight".