100793149805 has 4 divisors (see below), whose sum is σ = 120951779772. Its totient is φ = 80634519840.

The previous prime is 100793149781. The next prime is 100793149813. The reversal of 100793149805 is 508941397001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 508941397001 = 193 ⋅2637002057.

It can be written as a sum of positive squares in 2 ways, for example, as 80543575204 + 20249574601 = 283802^2 + 142301^2 .

It is a de Polignac number, because none of the positive numbers 2^k-100793149805 is a prime.

It is a super-2 number, since 2×100793149805² (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 100793149805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10079314976 + ... + 10079314985.

It is an arithmetic number, because the mean of its divisors is an integer number (30237944943).

Almost surely, 2^100793149805 is an apocalyptic number.

It is an amenable number.

100793149805 is a deficient number, since it is larger than the sum of its proper divisors (20158629967).

100793149805 is an equidigital number, since it uses as much as digits as its factorization.

100793149805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20158629966.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 100793149805 in words is "one hundred billion, seven hundred ninety-three million, one hundred forty-nine thousand, eight hundred five".