123578833728 has 112 divisors (see below), whose sum is σ = 378798043520. Its totient is φ = 34824536064.

The previous prime is 123578833699. The next prime is 123578833757. The reversal of 123578833728 is 827338875321.

It is an interprime number because it is at equal distance from previous prime (123578833699) and next prime (123578833757).

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531673 + ... + 727896.

Almost surely, 2^123578833728 is an apocalyptic number.

It is an amenable number.

123578833728 is an abundant number, since it is smaller than the sum of its proper divisors (255219209792).

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

123578833728 is a wasteful number, since it uses less digits than its factorization.

123578833728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259664 (or 1259654 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 57.

The spelling of 123578833728 in words is "one hundred twenty-three billion, five hundred seventy-eight million, eight hundred thirty-three thousand, seven hundred twenty-eight".