8233638897992 has 8 divisors (see below), whose sum is σ = 15438072933750. Its totient is φ = 4116819448992.

The previous prime is 8233638897949. The next prime is 8233638898021. The reversal of 8233638897992 is 2997988363328.

It can be written as a sum of positive squares in only one way, i.e., 4349168437156 + 3884470460836 = 2085466^2 + 1970906^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514602431117 + ... + 514602431132.

Almost surely, 2^{8233638897992} is an apocalyptic number.

It is an amenable number.

8233638897992 is a deficient number, since it is larger than the sum of its proper divisors (7204434035758).

8233638897992 is a wasteful number, since it uses less digits than its factorization.

8233638897992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029204862255 (or 1029204862251 counting only the distinct ones).

The product of its digits is 1693052928, while the sum is 77.

The spelling of 8233638897992 in words is "eight trillion, two hundred thirty-three billion, six hundred thirty-eight million, eight hundred ninety-seven thousand, nine hundred ninety-two".