10338649581 has 16 divisors (see below), whose sum is σ = 14893613504. Its totient is φ = 6341514624.

The previous prime is 10338649543. The next prime is 10338649597. The reversal of 10338649581 is 18594683301.

It is not a de Polignac number, because 10338649581 - 2¹¹ = 10338647533 is a prime.

It is a super-2 number, since 2×10338649581² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10338649581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10338649081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419776 + ... + 443721.

It is an arithmetic number, because the mean of its divisors is an integer number (930850844).

Almost surely, 2^10338649581 is an apocalyptic number.

It is an amenable number.

10338649581 is a deficient number, since it is larger than the sum of its proper divisors (4554963923).

10338649581 is a wasteful number, since it uses less digits than its factorization.

10338649581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863820.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 10338649581 in words is "ten billion, three hundred thirty-eight million, six hundred forty-nine thousand, five hundred eighty-one".