10898720501761 has 4 divisors (see below), whose sum is σ = 10898735084500. Its totient is φ = 10898705919024.

The previous prime is 10898720501731. The next prime is 10898720501819. The reversal of 10898720501761 is 16710502789801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5888174021136 + 5010546480625 = 2426556^2 + 2238425^2 .

It is a cyclic number.

It is not a de Polignac number, because 10898720501761 - 2²⁹ = 10898183630849 is a prime.

It is a super-2 number, since 2×10898720501761² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10898720501731) 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 3 ways as a sum of consecutive naturals, for example, 6106086 + ... + 7686463.

It is an arithmetic number, because the mean of its divisors is an integer number (2724683771125).

Almost surely, 2^{10898720501761} is an apocalyptic number.

It is an amenable number.

10898720501761 is a deficient number, since it is larger than the sum of its proper divisors (14582739).

10898720501761 is an equidigital number, since it uses as much as digits as its factorization.

10898720501761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14582738.

The product of its (nonzero) digits is 1693440, while the sum is 55.

The spelling of 10898720501761 in words is "ten trillion, eight hundred ninety-eight billion, seven hundred twenty million, five hundred one thousand, seven hundred sixty-one".