123988978006 has 8 divisors (see below), whose sum is σ = 186231117024. Its totient is φ = 61911939000.

The previous prime is 123988977989. The next prime is 123988978021. The reversal of 123988978006 is 600879889321.

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

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, 41273125 + ... + 41276128.

It is an arithmetic number, because the mean of its divisors is an integer number (23278889628).

Almost surely, 2^123988978006 is an apocalyptic number.

123988978006 is a deficient number, since it is larger than the sum of its proper divisors (62242139018).

123988978006 is an equidigital number, since it uses as much as digits as its factorization.

123988978006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82550006.

The product of its (nonzero) digits is 10450944, while the sum is 61.

The spelling of 123988978006 in words is "one hundred twenty-three billion, nine hundred eighty-eight million, nine hundred seventy-eight thousand, six".