123052546839978 has 288 divisors, whose sum is σ = 351534265625088. Its totient is φ = 32022345600000.

The previous prime is 123052546839941. The next prime is 123052546840037. The reversal of 123052546839978 is 879938645250321.

123052546839978 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 5 + 2 + 5 + 468 + 3 + 99 + 78 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 7647478 + ... + 17452478.

It is an arithmetic number, because the mean of its divisors is an integer number (1220605088976).

It is a 1-persistent number, because it is pandigital, but 2⋅123052546839978 = 246105093679956 is not.

Almost surely, 2^{123052546839978} is an apocalyptic number.

123052546839978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123052546839978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175767132812544).

123052546839978 is an abundant number, since it is smaller than the sum of its proper divisors (228481718785110).

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

123052546839978 is a wasteful number, since it uses less digits than its factorization.

123052546839978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9805080 (or 9805061 counting only the distinct ones).

The product of its (nonzero) digits is 783820800, while the sum is 72.

The spelling of 123052546839978 in words is "one hundred twenty-three trillion, fifty-two billion, five hundred forty-six million, eight hundred thirty-nine thousand, nine hundred seventy-eight".