123649093705 has 8 divisors (see below), whose sum is σ = 148499455104. Its totient is φ = 98838913200.

The previous prime is 123649093693. The next prime is 123649093721. The reversal of 123649093705 is 507390946321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123649093705 - 2⁹ = 123649093193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10038451 + ... + 10050760.

It is an arithmetic number, because the mean of its divisors is an integer number (18562431888).

Almost surely, 2^123649093705 is an apocalyptic number.

It is an amenable number.

123649093705 is a deficient number, since it is larger than the sum of its proper divisors (24850361399).

123649093705 is a wasteful number, since it uses less digits than its factorization.

123649093705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20090447.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The spelling of 123649093705 in words is "one hundred twenty-three billion, six hundred forty-nine million, ninety-three thousand, seven hundred five".