42691480144 has 40 divisors (see below), whose sum is σ = 83777091048. Its totient is φ = 21072691200.

The previous prime is 42691480141. The next prime is 42691480201. The reversal of 42691480144 is 44108419624.

It can be written as a sum of positive squares in 4 ways, for example, as 9389610000 + 33301870144 = 96900^2 + 182488^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42691480144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42691480141) 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, 588054 + ... + 656650.

Almost surely, 2^42691480144 is an apocalyptic number.

It is an amenable number.

42691480144 is a deficient number, since it is larger than the sum of its proper divisors (41085610904).

42691480144 is a wasteful number, since it uses less digits than its factorization.

42691480144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69103 (or 69097 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

Adding to 42691480144 its reverse (44108419624), we get a palindrome (86799899768).

The spelling of 42691480144 in words is "forty-two billion, six hundred ninety-one million, four hundred eighty thousand, one hundred forty-four".