4078422591 has 16 divisors (see below), whose sum is σ = 5567333376. Its totient is φ = 2654297856.

The previous prime is 4078422563. The next prime is 4078422617. The reversal of 4078422591 is 1952248704.

It is not a de Polignac number, because 4078422591 - 2⁵ = 4078422559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4078422091) 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, 269071 + ... + 283823.

It is an arithmetic number, because the mean of its divisors is an integer number (347958336).

Almost surely, 2^4078422591 is an apocalyptic number.

4078422591 is a deficient number, since it is larger than the sum of its proper divisors (1488910785).

4078422591 is a wasteful number, since it uses less digits than its factorization.

4078422591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16942.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 4078422591 is about 63862.5288490833. The cubic root of 4078422591 is about 1597.7079931279.

The spelling of 4078422591 in words is "four billion, seventy-eight million, four hundred twenty-two thousand, five hundred ninety-one".