4155974447 has 2 divisors, whose sum is σ = 4155974448. Its totient is φ = 4155974446.

The previous prime is 4155974419. The next prime is 4155974477. The reversal of 4155974447 is 7444795514.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4155974447 - 2¹⁴ = 4155958063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4155974395 and 4155974404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4155974477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2077987223 + 2077987224.

It is an arithmetic number, because the mean of its divisors is an integer number (2077987224).

Almost surely, 2^4155974447 is an apocalyptic number.

4155974447 is a deficient number, since it is larger than the sum of its proper divisors (1).

4155974447 is an equidigital number, since it uses as much as digits as its factorization.

4155974447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2822400, while the sum is 50.

The square root of 4155974447 is about 64466.8476583119. The cubic root of 4155974447 is about 1607.7713653492.

The spelling of 4155974447 in words is "four billion, one hundred fifty-five million, nine hundred seventy-four thousand, four hundred forty-seven".