23749074728 has 8 divisors (see below), whose sum is σ = 44529515130. Its totient is φ = 11874537360.

The previous prime is 23749074677. The next prime is 23749074731. The reversal of 23749074728 is 82747094732.

It can be written as a sum of positive squares in only one way, i.e., 15040079044 + 8708995684 = 122638^2 + 93322^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×23749074728² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23749074728.

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 as a sum of consecutive naturals, namely, 1484317163 + ... + 1484317178.

Almost surely, 2^23749074728 is an apocalyptic number.

It is an amenable number.

23749074728 is a deficient number, since it is larger than the sum of its proper divisors (20780440402).

23749074728 is a wasteful number, since it uses less digits than its factorization.

23749074728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968634347 (or 2968634343 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 53.

The spelling of 23749074728 in words is "twenty-three billion, seven hundred forty-nine million, seventy-four thousand, seven hundred twenty-eight".