10721901748 has 6 divisors (see below), whose sum is σ = 18763328066. Its totient is φ = 5360950872.

The previous prime is 10721901727. The next prime is 10721901763. The reversal of 10721901748 is 84710912701.

It can be written as a sum of positive squares in only one way, i.e., 6213853584 + 4508048164 = 78828^2 + 67142^2 .

It is a super-2 number, since 2×10721901748² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10721901748.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340237715 + ... + 1340237722.

Almost surely, 2^10721901748 is an apocalyptic number.

It is an amenable number.

10721901748 is a deficient number, since it is larger than the sum of its proper divisors (8041426318).

10721901748 is a wasteful number, since it uses less digits than its factorization.

10721901748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680475441 (or 2680475439 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 40.

The spelling of 10721901748 in words is "ten billion, seven hundred twenty-one million, nine hundred one thousand, seven hundred forty-eight".