3161916647429 has 4 divisors (see below), whose sum is σ = 3169427138700. Its totient is φ = 3154406156160.

The previous prime is 3161916647423. The next prime is 3161916647441. The reversal of 3161916647429 is 9247466191613.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15443778529 + 3146472868900 = 124273^2 + 1773830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3161916647429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3161916647423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3755245004 + ... + 3755245845.

It is an arithmetic number, because the mean of its divisors is an integer number (792356784675).

Almost surely, 2^{3161916647429} is an apocalyptic number.

It is an amenable number.

3161916647429 is a deficient number, since it is larger than the sum of its proper divisors (7510491271).

3161916647429 is an equidigital number, since it uses as much as digits as its factorization.

3161916647429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7510491270.

The product of its digits is 11757312, while the sum is 59.

The spelling of 3161916647429 in words is "three trillion, one hundred sixty-one billion, nine hundred sixteen million, six hundred forty-seven thousand, four hundred twenty-nine".