591590881491 has 8 divisors (see below), whose sum is σ = 810106432464. Its totient is φ = 383734625760.

The previous prime is 591590881481. The next prime is 591590881537. The reversal of 591590881491 is 194188095195.

It is a happy number.

591590881491 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 591590881491 - 2²³ = 591582492883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (591590881481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2664823680 + ... + 2664823901.

It is an arithmetic number, because the mean of its divisors is an integer number (101263304058).

Almost surely, 2^591590881491 is an apocalyptic number.

591590881491 is a deficient number, since it is larger than the sum of its proper divisors (218515550973).

591590881491 is a wasteful number, since it uses less digits than its factorization.

591590881491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5329647621.

The product of its (nonzero) digits is 4665600, while the sum is 60.

The spelling of 591590881491 in words is "five hundred ninety-one billion, five hundred ninety million, eight hundred eighty-one thousand, four hundred ninety-one".