123920074752 has 96 divisors (see below), whose sum is σ = 331440258240. Its totient is φ = 41173237760.

The previous prime is 123920074711. The next prime is 123920074753. The reversal of 123920074752 is 257470029321.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (123920074753) 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, 1878358 + ... + 1943210.

It is an arithmetic number, because the mean of its divisors is an integer number (3452502690).

Almost surely, 2^123920074752 is an apocalyptic number.

123920074752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123920074752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165720129120).

123920074752 is an abundant number, since it is smaller than the sum of its proper divisors (207520183488).

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

123920074752 is an equidigital number, since it uses as much as digits as its factorization.

123920074752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65189 (or 65169 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 123920074752 in words is "one hundred twenty-three billion, nine hundred twenty million, seventy-four thousand, seven hundred fifty-two".