3161438784 has 84 divisors (see below), whose sum is σ = 10356234304. Its totient is φ = 903267072.

The previous prime is 3161438759. The next prime is 3161438789. The reversal of 3161438784 is 4878341613.

It is a tau number, because it is divible by the number of its divisors (84).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (3161438789) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 388012 + ... + 396075.

Almost surely, 2^3161438784 is an apocalyptic number.

It is an amenable number.

3161438784 is an abundant number, since it is smaller than the sum of its proper divisors (7194795520).

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

3161438784 is a wasteful number, since it uses less digits than its factorization.

3161438784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784112 (or 784099 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 3161438784 is about 56226.6732432215. The cubic root of 3161438784 is about 1467.6694655351.

The spelling of 3161438784 in words is "three billion, one hundred sixty-one million, four hundred thirty-eight thousand, seven hundred eighty-four".