100791393508 has 48 divisors (see below), whose sum is σ = 190482470640. Its totient is φ = 46389657600.

The previous prime is 100791393491. The next prime is 100791393539. The reversal of 100791393508 is 805393197001.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 15081804864 + 85709588644 = 122808^2 + 292762^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35227998 + ... + 35230858.

It is an arithmetic number, because the mean of its divisors is an integer number (3968384805).

Almost surely, 2^100791393508 is an apocalyptic number.

It is an amenable number.

100791393508 is a deficient number, since it is larger than the sum of its proper divisors (89691077132).

100791393508 is a wasteful number, since it uses less digits than its factorization.

100791393508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4528 (or 4526 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 46.

The spelling of 100791393508 in words is "one hundred billion, seven hundred ninety-one million, three hundred ninety-three thousand, five hundred eight".