123296677648 has 20 divisors (see below), whose sum is σ = 252939508380. Its totient is φ = 58021965824.

The previous prime is 123296677627. The next prime is 123296677661. The reversal of 123296677648 is 846776692321.

It can be written as a sum of positive squares in 2 ways, for example, as 92386818304 + 30909859344 = 303952^2 + 175812^2 .

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, 226648033 + ... + 226648576.

It is an arithmetic number, because the mean of its divisors is an integer number (12646975419).

Almost surely, 2^123296677648 is an apocalyptic number.

It is an amenable number.

123296677648 is an abundant number, since it is smaller than the sum of its proper divisors (129642830732).

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

123296677648 is a wasteful number, since it uses less digits than its factorization.

123296677648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453296634 (or 453296628 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 61.

The spelling of 123296677648 in words is "one hundred twenty-three billion, two hundred ninety-six million, six hundred seventy-seven thousand, six hundred forty-eight".