23212117464 has 32 divisors (see below), whose sum is σ = 58053265920. Its totient is φ = 7734309536.

The previous prime is 23212117463. The next prime is 23212117471. The reversal of 23212117464 is 46471121232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212117463) 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 in 7 ways as a sum of consecutive naturals, for example, 129132 + ... + 251195.

It is an arithmetic number, because the mean of its divisors is an integer number (1814164560).

Almost surely, 2^23212117464 is an apocalyptic number.

23212117464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23212117464 is an abundant number, since it is smaller than the sum of its proper divisors (34841148456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23212117464 is a wasteful number, since it uses less digits than its factorization.

23212117464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382879 (or 382875 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

Adding to 23212117464 its reverse (46471121232), we get a palindrome (69683238696).

The spelling of 23212117464 in words is "twenty-three billion, two hundred twelve million, one hundred seventeen thousand, four hundred sixty-four".