123186749484 has 12 divisors (see below), whose sum is σ = 287435748824. Its totient is φ = 41062249824.

The previous prime is 123186749471. The next prime is 123186749519. The reversal of 123186749484 is 484947681321.

It is a tau number, because it is divible by the number of its divisors (12).

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, 5132781217 + ... + 5132781240.

Almost surely, 2^123186749484 is an apocalyptic number.

It is an amenable number.

123186749484 is an abundant number, since it is smaller than the sum of its proper divisors (164248999340).

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

123186749484 is a wasteful number, since it uses less digits than its factorization.

123186749484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10265562464 (or 10265562462 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 57.

The spelling of 123186749484 in words is "one hundred twenty-three billion, one hundred eighty-six million, seven hundred forty-nine thousand, four hundred eighty-four".