4236161939391 has 16 divisors (see below), whose sum is σ = 5656311125600. Its totient is φ = 2820062988288.

The previous prime is 4236161939389. The next prime is 4236161939413. The reversal of 4236161939391 is 1939391616324.

It is a happy number.

It is not a de Polignac number, because 4236161939391 - 2¹ = 4236161939389 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 (4236161939381) 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, 6141075 + ... + 6795963.

It is an arithmetic number, because the mean of its divisors is an integer number (353519445350).

Almost surely, 2^{4236161939391} is an apocalyptic number.

4236161939391 is a deficient number, since it is larger than the sum of its proper divisors (1420149186209).

4236161939391 is a wasteful number, since it uses less digits than its factorization.

4236161939391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657978.

The product of its digits is 5668704, while the sum is 57.

The spelling of 4236161939391 in words is "four trillion, two hundred thirty-six billion, one hundred sixty-one million, nine hundred thirty-nine thousand, three hundred ninety-one".