31052403644 has 6 divisors (see below), whose sum is σ = 54341706384. Its totient is φ = 15526201820.

The previous prime is 31052403623. The next prime is 31052403649. The reversal of 31052403644 is 44630425013.

It is a self number, because there is not a number n which added to its sum of digits gives 31052403644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31052403649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3881550452 + ... + 3881550459.

It is an arithmetic number, because the mean of its divisors is an integer number (9056951064).

Almost surely, 2^31052403644 is an apocalyptic number.

It is an amenable number.

31052403644 is a deficient number, since it is larger than the sum of its proper divisors (23289302740).

31052403644 is a wasteful number, since it uses less digits than its factorization.

31052403644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7763100915 (or 7763100913 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 31052403644 its reverse (44630425013), we get a palindrome (75682828657).

The spelling of 31052403644 in words is "thirty-one billion, fifty-two million, four hundred three thousand, six hundred forty-four".