2426661591 has 8 divisors (see below), whose sum is σ = 3248139504. Its totient is φ = 1611479040.

The previous prime is 2426661581. The next prime is 2426661593. The reversal of 2426661591 is 1951666242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2426661591 - 2⁷ = 2426661463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2426661593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1572940 + ... + 1574481.

It is an arithmetic number, because the mean of its divisors is an integer number (406017438).

Almost surely, 2^2426661591 is an apocalyptic number.

2426661591 is a deficient number, since it is larger than the sum of its proper divisors (821477913).

2426661591 is a wasteful number, since it uses less digits than its factorization.

2426661591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147681.

The product of its digits is 155520, while the sum is 42.

The square root of 2426661591 is about 49261.1570205167. The cubic root of 2426661591 is about 1343.8054725944.

The spelling of 2426661591 in words is "two billion, four hundred twenty-six million, six hundred sixty-one thousand, five hundred ninety-one".