591955112542 has 4 divisors (see below), whose sum is σ = 887932668816. Its totient is φ = 295977556270.

The previous prime is 591955112533. The next prime is 591955112549. The reversal of 591955112542 is 245211559195.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 245211559195 = 5 ⋅49042311839.

It is a super-2 number, since 2×591955112542² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (591955112549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 147988778134 + ... + 147988778137.

It is an arithmetic number, because the mean of its divisors is an integer number (221983167204).

Almost surely, 2^591955112542 is an apocalyptic number.

591955112542 is a deficient number, since it is larger than the sum of its proper divisors (295977556274).

591955112542 is a wasteful number, since it uses less digits than its factorization.

591955112542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295977556273.

The product of its digits is 810000, while the sum is 49.

The spelling of 591955112542 in words is "five hundred ninety-one billion, nine hundred fifty-five million, one hundred twelve thousand, five hundred forty-two".