19989522470 has 64 divisors (see below), whose sum is σ = 38896588800. Its totient is φ = 7373358720.

The previous prime is 19989522467. The next prime is 19989522473. The reversal of 19989522470 is 7422598991.

It is an interprime number because it is at equal distance from previous prime (19989522467) and next prime (19989522473).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19989522473) 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 31 ways as a sum of consecutive naturals, for example, 1056332 + ... + 1075088.

It is an arithmetic number, because the mean of its divisors is an integer number (607759200).

Almost surely, 2^19989522470 is an apocalyptic number.

19989522470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19989522470 is a deficient number, since it is larger than the sum of its proper divisors (18907066330).

19989522470 is a wasteful number, since it uses less digits than its factorization.

19989522470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18933.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 19989522470 in words is "nineteen billion, nine hundred eighty-nine million, five hundred twenty-two thousand, four hundred seventy".