123925960805 has 8 divisors (see below), whose sum is σ = 149328213144. Its totient is φ = 98729395200.

The previous prime is 123925960801. The next prime is 123925960849. The reversal of 123925960805 is 508069529321.

It can be written as a sum of positive squares in 4 ways, for example, as 37302287044 + 86623673761 = 193138^2 + 294319^2 .

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

It is not a de Polignac number, because 123925960805 - 2² = 123925960801 is a prime.

It is a super-2 number, since 2×123925960805² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123925960801) 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, 51420356 + ... + 51422765.

It is an arithmetic number, because the mean of its divisors is an integer number (18666026643).

Almost surely, 2^123925960805 is an apocalyptic number.

It is an amenable number.

123925960805 is a deficient number, since it is larger than the sum of its proper divisors (25402252339).

123925960805 is a wasteful number, since it uses less digits than its factorization.

123925960805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102843367.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 123925960805 in words is "one hundred twenty-three billion, nine hundred twenty-five million, nine hundred sixty thousand, eight hundred five".