1965478473 has 16 divisors (see below), whose sum is σ = 3327794560. Its totient is φ = 1123130448.

The previous prime is 1965478469. The next prime is 1965478481. The reversal of 1965478473 is 3748745691.

1965478473 is a `hidden beast` number, since 1 + 96 + 547 + 8 + 4 + 7 + 3 = 666.

It is not a de Polignac number, because 1965478473 - 2² = 1965478469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1965478423) 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, 5199490 + ... + 5199867.

It is an arithmetic number, because the mean of its divisors is an integer number (207987160).

Almost surely, 2^1965478473 is an apocalyptic number.

It is an amenable number.

1965478473 is a deficient number, since it is larger than the sum of its proper divisors (1362316087).

1965478473 is a wasteful number, since it uses less digits than its factorization.

1965478473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10399373 (or 10399367 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 1965478473 is about 44333.7171123740. The cubic root of 1965478473 is about 1252.6298707171.

The spelling of 1965478473 in words is "one billion, nine hundred sixty-five million, four hundred seventy-eight thousand, four hundred seventy-three".