10939561577 has 16 divisors (see below), whose sum is σ = 12667906560. Its totient is φ = 9252741888.

The previous prime is 10939561571. The next prime is 10939561579. The reversal of 10939561577 is 77516593901.

It is a cyclic number.

It is not a de Polignac number, because 10939561577 - 2⁴ = 10939561561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10939561571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1177133 + ... + 1186389.

It is an arithmetic number, because the mean of its divisors is an integer number (791744160).

Almost surely, 2^10939561577 is an apocalyptic number.

It is an amenable number.

10939561577 is a deficient number, since it is larger than the sum of its proper divisors (1728344983).

10939561577 is an equidigital number, since it uses as much as digits as its factorization.

10939561577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11480.

The product of its (nonzero) digits is 1786050, while the sum is 53.

The spelling of 10939561577 in words is "ten billion, nine hundred thirty-nine million, five hundred sixty-one thousand, five hundred seventy-seven".