19477386960 has 80 divisors (see below), whose sum is σ = 61207076544. Its totient is φ = 5122814976.

The previous prime is 19477386947. The next prime is 19477386961. The reversal of 19477386960 is 6968377491.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 19477386894 and 19477386903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19477386961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538342 + ... + 573381.

Almost surely, 2^19477386960 is an apocalyptic number.

19477386960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19477386960 is an abundant number, since it is smaller than the sum of its proper divisors (41729689584).

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

19477386960 is a wasteful number, since it uses less digits than its factorization.

19477386960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111812 (or 1111806 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 60.

The spelling of 19477386960 in words is "nineteen billion, four hundred seventy-seven million, three hundred eighty-six thousand, nine hundred sixty".