23212136408 has 8 divisors (see below), whose sum is σ = 43522755780. Its totient is φ = 11606068200.

The previous prime is 23212136407. The next prime is 23212136449. The reversal of 23212136408 is 80463121232.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212136407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1450758518 + ... + 1450758533.

Almost surely, 2^23212136408 is an apocalyptic number.

It is an amenable number.

23212136408 is a deficient number, since it is larger than the sum of its proper divisors (20310619372).

23212136408 is a wasteful number, since it uses less digits than its factorization.

23212136408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901517057 (or 2901517053 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 23212136408 in words is "twenty-three billion, two hundred twelve million, one hundred thirty-six thousand, four hundred eight".