42235131544 has 8 divisors (see below), whose sum is σ = 79190871660. Its totient is φ = 21117565768.

The previous prime is 42235131511. The next prime is 42235131583. The reversal of 42235131544 is 44513153224.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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, 2639695714 + ... + 2639695729.

Almost surely, 2^42235131544 is an apocalyptic number.

It is an amenable number.

42235131544 is a deficient number, since it is larger than the sum of its proper divisors (36955740116).

42235131544 is a wasteful number, since it uses less digits than its factorization.

42235131544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5279391449 (or 5279391445 counting only the distinct ones).

The product of its digits is 57600, while the sum is 34.

Adding to 42235131544 its reverse (44513153224), we get a palindrome (86748284768).

The spelling of 42235131544 in words is "forty-two billion, two hundred thirty-five million, one hundred thirty-one thousand, five hundred forty-four".