19464464472 has 64 divisors (see below), whose sum is σ = 51347520000. Its totient is φ = 6136314624.

The previous prime is 19464464447. The next prime is 19464464473. The reversal of 19464464472 is 27446446491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19464464473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148972 + ... + 247227.

It is an arithmetic number, because the mean of its divisors is an integer number (802305000).

Almost surely, 2^19464464472 is an apocalyptic number.

19464464472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19464464472 is an abundant number, since it is smaller than the sum of its proper divisors (31883055528).

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

19464464472 is a wasteful number, since it uses less digits than its factorization.

19464464472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396320 (or 396316 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 51.

The spelling of 19464464472 in words is "nineteen billion, four hundred sixty-four million, four hundred sixty-four thousand, four hundred seventy-two".