123591676490 has 8 divisors (see below), whose sum is σ = 222465017700. Its totient is φ = 49436670592.

The previous prime is 123591676487. The next prime is 123591676517. The reversal of 123591676490 is 94676195321.

123591676490 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 105317773729 + 18273902761 = 324527^2 + 135181^2 .

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

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 6179583815 + ... + 6179583834.

Almost surely, 2^123591676490 is an apocalyptic number.

123591676490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123591676490 is a deficient number, since it is larger than the sum of its proper divisors (98873341210).

123591676490 is a wasteful number, since it uses less digits than its factorization.

123591676490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12359167656.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 123591676490 in words is "one hundred twenty-three billion, five hundred ninety-one million, six hundred seventy-six thousand, four hundred ninety".