10745802720521 has 8 divisors (see below), whose sum is σ = 12008613240288. Its totient is φ = 9530645428000.

The previous prime is 10745802720491. The next prime is 10745802720529. The reversal of 10745802720521 is 12502720854701.

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 10745802720521 - 2³⁸ = 10470924813577 is a prime.

It is a super-2 number, since 2×10745802720521² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10745802720529) 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, 11913306335 + ... + 11913307236.

It is an arithmetic number, because the mean of its divisors is an integer number (1501076655036).

Almost surely, 2^{10745802720521} is an apocalyptic number.

10745802720521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10745802720521 is a deficient number, since it is larger than the sum of its proper divisors (1262810519767).

10745802720521 is a wasteful number, since it uses less digits than its factorization.

10745802720521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23826613623.

The product of its (nonzero) digits is 313600, while the sum is 44.

The spelling of 10745802720521 in words is "ten trillion, seven hundred forty-five billion, eight hundred two million, seven hundred twenty thousand, five hundred twenty-one".