19464375560 has 128 divisors (see below), whose sum is σ = 50714726400. Its totient is φ = 6585511680.

The previous prime is 19464375559. The next prime is 19464375611. The reversal of 19464375560 is 6557346491.

It is a junction number, because it is equal to n+sod(n) for n = 19464375499 and 19464375508.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9545021 + ... + 9547059.

It is an arithmetic number, because the mean of its divisors is an integer number (396208800).

Almost surely, 2^19464375560 is an apocalyptic number.

19464375560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19464375560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25357363200).

19464375560 is an abundant number, since it is smaller than the sum of its proper divisors (31250350840).

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

19464375560 is a wasteful number, since it uses less digits than its factorization.

19464375560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491 (or 2487 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 19464375560 in words is "nineteen billion, four hundred sixty-four million, three hundred seventy-five thousand, five hundred sixty".