23938038545 has 16 divisors (see below), whose sum is σ = 29887986960. Its totient is φ = 18383172864.

The previous prime is 23938038541. The next prime is 23938038557. The reversal of 23938038545 is 54583083932.

It can be written as a sum of positive squares in 8 ways, for example, as 3333445696 + 20604592849 = 57736^2 + 143543^2 .

It is a cyclic number.

It is not a de Polignac number, because 23938038545 - 2² = 23938038541 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23938038493 and 23938038502.

It is not an unprimeable number, because it can be changed into a prime (23938038541) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 452054 + ... + 502223.

It is an arithmetic number, because the mean of its divisors is an integer number (1867999185).

Almost surely, 2^23938038545 is an apocalyptic number.

It is an amenable number.

23938038545 is a deficient number, since it is larger than the sum of its proper divisors (5949948415).

23938038545 is a wasteful number, since it uses less digits than its factorization.

23938038545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954484.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 23938038545 in words is "twenty-three billion, nine hundred thirty-eight million, thirty-eight thousand, five hundred forty-five".