123648590634 has 32 divisors (see below), whose sum is σ = 257111070720. Its totient is φ = 39599679600.

The previous prime is 123648590629. The next prime is 123648590641. The reversal of 123648590634 is 436095846321.

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 15 ways as a sum of consecutive naturals, for example, 2365432 + ... + 2417139.

It is an arithmetic number, because the mean of its divisors is an integer number (8034720960).

Almost surely, 2^123648590634 is an apocalyptic number.

123648590634 is an abundant number, since it is smaller than the sum of its proper divisors (133462480086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123648590634 is a wasteful number, since it uses less digits than its factorization.

123648590634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4782746.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 123648590634 in words is "one hundred twenty-three billion, six hundred forty-eight million, five hundred ninety thousand, six hundred thirty-four".