123942948489 has 12 divisors (see below), whose sum is σ = 179092884672. Its totient is φ = 82599010200.

The previous prime is 123942948449. The next prime is 123942948497. The reversal of 123942948489 is 984849249321.

123942948489 is a `hidden beast` number, since 1 + 2 + 3 + 94 + 29 + 48 + 489 = 666.

It is not a de Polignac number, because 123942948489 - 2⁷ = 123942948361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123942948449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2441997 + ... + 2492234.

It is an arithmetic number, because the mean of its divisors is an integer number (14924407056).

Almost surely, 2^123942948489 is an apocalyptic number.

It is an amenable number.

123942948489 is a deficient number, since it is larger than the sum of its proper divisors (55149936183).

123942948489 is a wasteful number, since it uses less digits than its factorization.

123942948489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937028 (or 4937025 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 63.

The spelling of 123942948489 in words is "one hundred twenty-three billion, nine hundred forty-two million, nine hundred forty-eight thousand, four hundred eighty-nine".