10761221563 has 4 divisors (see below), whose sum is σ = 10770856720. Its totient is φ = 10751586408.

The previous prime is 10761221551. The next prime is 10761221657. The reversal of 10761221563 is 36512216701.

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

It is a cyclic number.

It is not a de Polignac number, because 10761221563 - 2²⁹ = 10224350651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10761221533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4815903 + ... + 4818136.

It is an arithmetic number, because the mean of its divisors is an integer number (2692714180).

Almost surely, 2^10761221563 is an apocalyptic number.

10761221563 is a deficient number, since it is larger than the sum of its proper divisors (9635157).

10761221563 is an equidigital number, since it uses as much as digits as its factorization.

10761221563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9635156.

The product of its (nonzero) digits is 15120, while the sum is 34.

It can be divided in two parts, 10761 and 221563, that added together give a square (232324 = 482²).

The spelling of 10761221563 in words is "ten billion, seven hundred sixty-one million, two hundred twenty-one thousand, five hundred sixty-three".