123328438077 has 8 divisors (see below), whose sum is σ = 177086988064. Its totient is φ = 75894423408.

The previous prime is 123328438027. The next prime is 123328438081. The reversal of 123328438077 is 770834823321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-123328438077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123328438007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1581133783 + ... + 1581133860.

It is an arithmetic number, because the mean of its divisors is an integer number (22135873508).

Almost surely, 2^123328438077 is an apocalyptic number.

It is an amenable number.

123328438077 is a deficient number, since it is larger than the sum of its proper divisors (53758549987).

123328438077 is a wasteful number, since it uses less digits than its factorization.

123328438077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162267659.

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 123328438077 in words is "one hundred twenty-three billion, three hundred twenty-eight million, four hundred thirty-eight thousand, seventy-seven".