10456737721 has 8 divisors (see below), whose sum is σ = 10989106304. Its totient is φ = 9937514160.

The previous prime is 10456737719. The next prime is 10456737743. The reversal of 10456737721 is 12773765401.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10456737721 - 2¹ = 10456737719 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10456737121) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3284625 + ... + 3287806.

It is an arithmetic number, because the mean of its divisors is an integer number (1373638288).

Almost surely, 2^10456737721 is an apocalyptic number.

It is an amenable number.

10456737721 is a deficient number, since it is larger than the sum of its proper divisors (532368583).

10456737721 is an equidigital number, since it uses as much as digits as its factorization.

10456737721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6572511.

The product of its (nonzero) digits is 246960, while the sum is 43.

The spelling of 10456737721 in words is "ten billion, four hundred fifty-six million, seven hundred thirty-seven thousand, seven hundred twenty-one".