123898784108 has 24 divisors (see below), whose sum is σ = 236631147984. Its totient is φ = 56294508800.

The previous prime is 123898784077. The next prime is 123898784117. The reversal of 123898784108 is 801487898321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469385 + ... + 684192.

It is an arithmetic number, because the mean of its divisors is an integer number (9859631166).

Almost surely, 2^123898784108 is an apocalyptic number.

It is an amenable number.

123898784108 is a deficient number, since it is larger than the sum of its proper divisors (112732363876).

123898784108 is a wasteful number, since it uses less digits than its factorization.

123898784108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156033 (or 1156031 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 59.

The spelling of 123898784108 in words is "one hundred twenty-three billion, eight hundred ninety-eight million, seven hundred eighty-four thousand, one hundred eight".