10670971921 has 8 divisors (see below), whose sum is σ = 11043786600. Its totient is φ = 10298480640.

The previous prime is 10670971901. The next prime is 10670971937. The reversal of 10670971921 is 12917907601.

It can be written as a sum of positive squares in 4 ways, for example, as 1157700625 + 9513271296 = 34025^2 + 97536^2 .

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 10670971921 - 2⁷ = 10670971793 is a prime.

It is a super-2 number, since 2×10670971921² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10670971901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12720 + ... + 146641.

It is an arithmetic number, because the mean of its divisors is an integer number (1380473325).

Almost surely, 2^10670971921 is an apocalyptic number.

It is an amenable number.

10670971921 is a deficient number, since it is larger than the sum of its proper divisors (372814679).

10670971921 is a wasteful number, since it uses less digits than its factorization.

10670971921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161699.

The product of its (nonzero) digits is 47628, while the sum is 43.

The spelling of 10670971921 in words is "ten billion, six hundred seventy million, nine hundred seventy-one thousand, nine hundred twenty-one".