10721731044 has 24 divisors (see below), whose sum is σ = 25360078240. Its totient is φ = 3524952384.

The previous prime is 10721731019. The next prime is 10721731093. The reversal of 10721731044 is 44013712701.

It is a super-2 number, since 2×10721731044² (a number of 21 digits) contains 22 as substring.

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, 6118834 + ... + 6120585.

Almost surely, 2^10721731044 is an apocalyptic number.

It is an amenable number.

10721731044 is an abundant number, since it is smaller than the sum of its proper divisors (14638347196).

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

10721731044 is a wasteful number, since it uses less digits than its factorization.

10721731044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12239499 (or 12239497 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The spelling of 10721731044 in words is "ten billion, seven hundred twenty-one million, seven hundred thirty-one thousand, forty-four".