123607989986 has 8 divisors (see below), whose sum is σ = 199674445404. Its totient is φ = 57049841520.

The previous prime is 123607989929. The next prime is 123607990021. The reversal of 123607989986 is 689989706321.

It can be written as a sum of positive squares in 2 ways, for example, as 121082424961 + 2525565025 = 347969^2 + 50255^2 .

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

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, 2377076705 + ... + 2377076756.

Almost surely, 2^123607989986 is an apocalyptic number.

123607989986 is a deficient number, since it is larger than the sum of its proper divisors (76066455418).

123607989986 is a wasteful number, since it uses less digits than its factorization.

123607989986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754153476.

The product of its (nonzero) digits is 70543872, while the sum is 68.

The spelling of 123607989986 in words is "one hundred twenty-three billion, six hundred seven million, nine hundred eighty-nine thousand, nine hundred eighty-six".