19485670720 has 56 divisors (see below), whose sum is σ = 48000285000. Its totient is φ = 7525496832.

The previous prime is 19485670709. The next prime is 19485670747. The reversal of 19485670720 is 2707658491.

It can be written as a sum of positive squares in 4 ways, for example, as 459330624 + 19026340096 = 21432^2 + 137936^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040595 + ... + 1059154.

Almost surely, 2^19485670720 is an apocalyptic number.

19485670720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19485670720 is an abundant number, since it is smaller than the sum of its proper divisors (28514614280).

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

19485670720 is a wasteful number, since it uses less digits than its factorization.

19485670720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099795 (or 2099785 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 19485670720 in words is "nineteen billion, four hundred eighty-five million, six hundred seventy thousand, seven hundred twenty".