4084745605391 has 16 divisors (see below), whose sum is σ = 4649993809920. Its totient is φ = 3551826796320.

The previous prime is 4084745605379. The next prime is 4084745605399. The reversal of 4084745605391 is 1935065474804.

It is a happy number.

It is not a de Polignac number, because 4084745605391 - 2⁶ = 4084745605327 is a prime.

It is a super-2 number, since 2×4084745605391² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4084745605399) 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, 7257761 + ... + 7800293.

It is an arithmetic number, because the mean of its divisors is an integer number (290624613120).

Almost surely, 2^{4084745605391} is an apocalyptic number.

4084745605391 is a deficient number, since it is larger than the sum of its proper divisors (565248204529).

4084745605391 is a wasteful number, since it uses less digits than its factorization.

4084745605391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572326.

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 4084745605391 in words is "four trillion, eighty-four billion, seven hundred forty-five million, six hundred five thousand, three hundred ninety-one".