23138871752 has 16 divisors (see below), whose sum is σ = 43387395660. Its totient is φ = 11568899584.

The previous prime is 23138871739. The next prime is 23138871761. The reversal of 23138871752 is 25717883132.

It can be written as a sum of positive squares in 2 ways, for example, as 20571017476 + 2567854276 = 143426^2 + 50674^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23138871697 and 23138871706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162608 + ... + 269664.

Almost surely, 2^23138871752 is an apocalyptic number.

It is an amenable number.

23138871752 is a deficient number, since it is larger than the sum of its proper divisors (20248523908).

23138871752 is a wasteful number, since it uses less digits than its factorization.

23138871752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134080 (or 134076 counting only the distinct ones).

The product of its digits is 564480, while the sum is 47.

The spelling of 23138871752 in words is "twenty-three billion, one hundred thirty-eight million, eight hundred seventy-one thousand, seven hundred fifty-two".