10031340644 has 24 divisors (see below), whose sum is σ = 19014514680. Its totient is φ = 4603083264.

The previous prime is 10031340619. The next prime is 10031340659. The reversal of 10031340644 is 44604313001.

It can be written as a sum of positive squares in 4 ways, for example, as 3731743744 + 6299596900 = 61088^2 + 79370^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548549 + ... + 566540.

It is an arithmetic number, because the mean of its divisors is an integer number (792271445).

Almost surely, 2^10031340644 is an apocalyptic number.

It is an amenable number.

10031340644 is a deficient number, since it is larger than the sum of its proper divisors (8983174036).

10031340644 is a wasteful number, since it uses less digits than its factorization.

10031340644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115279 (or 1115277 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 10031340644 its reverse (44604313001), we get a palindrome (54635653645).

The spelling of 10031340644 in words is "ten billion, thirty-one million, three hundred forty thousand, six hundred forty-four".