10267746721 has 8 divisors (see below), whose sum is σ = 10416242304. Its totient is φ = 10119359040.

The previous prime is 10267746719. The next prime is 10267746743. The reversal of 10267746721 is 12764776201.

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 10267746721 - 2¹ = 10267746719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10267746761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175620 + ... + 226666.

It is an arithmetic number, because the mean of its divisors is an integer number (1302030288).

Almost surely, 2^10267746721 is an apocalyptic number.

It is an amenable number.

10267746721 is a deficient number, since it is larger than the sum of its proper divisors (148495583).

10267746721 is an equidigital number, since it uses as much as digits as its factorization.

10267746721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53951.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 10267746721 in words is "ten billion, two hundred sixty-seven million, seven hundred forty-six thousand, seven hundred twenty-one".