123895740684 has 24 divisors (see below), whose sum is σ = 296903307568. Its totient is φ = 40182402240.

The previous prime is 123895740679. The next prime is 123895740691. The reversal of 123895740684 is 486047598321.

It is a happy number.

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, 139521787 + ... + 139522674.

It is a 1-persistent number, because it is pandigital, but 2⋅123895740684 = 247791481368 is not.

Almost surely, 2^123895740684 is an apocalyptic number.

It is an amenable number.

123895740684 is an abundant number, since it is smaller than the sum of its proper divisors (173007566884).

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

123895740684 is a wasteful number, since it uses less digits than its factorization.

123895740684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279044505 (or 279044503 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 123895740684 in words is "one hundred twenty-three billion, eight hundred ninety-five million, seven hundred forty thousand, six hundred eighty-four".