10921174745 has 16 divisors (see below), whose sum is σ = 14494967760. Its totient is φ = 7846896384.

The previous prime is 10921174739. The next prime is 10921174783. The reversal of 10921174745 is 54747112901.

It can be written as a sum of positive squares in 8 ways, for example, as 910772041 + 10010402704 = 30179^2 + 100052^2 .

It is a cyclic number.

It is not a de Polignac number, because 10921174745 - 2²⁰ = 10920126169 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2268110 + ... + 2272919.

It is an arithmetic number, because the mean of its divisors is an integer number (905935485).

Almost surely, 2^10921174745 is an apocalyptic number.

It is an amenable number.

10921174745 is a deficient number, since it is larger than the sum of its proper divisors (3573793015).

10921174745 is a wasteful number, since it uses less digits than its factorization.

10921174745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4541084.

The product of its (nonzero) digits is 70560, while the sum is 41.

The spelling of 10921174745 in words is "ten billion, nine hundred twenty-one million, one hundred seventy-four thousand, seven hundred forty-five".