140402561344 has 28 divisors (see below), whose sum is σ = 282535445088. Its totient is φ = 69212528000.

The previous prime is 140402561267. The next prime is 140402561381. The reversal of 140402561344 is 443165204041.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15444682 + ... + 15453769.

Almost surely, 2^140402561344 is an apocalyptic number.

It is an amenable number.

140402561344 is an abundant number, since it is smaller than the sum of its proper divisors (142132883744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140402561344 is an equidigital number, since it uses as much as digits as its factorization.

140402561344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30898534 (or 30898524 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 140402561344 its reverse (443165204041), we get a palindrome (583567765385).

The spelling of 140402561344 in words is "one hundred forty billion, four hundred two million, five hundred sixty-one thousand, three hundred forty-four".