561582386878011 has 8 divisors (see below), whose sum is σ = 748796107725120. Its totient is φ = 374378461974792.

The previous prime is 561582386877991. The next prime is 561582386878031. The reversal of 561582386878011 is 110878683285165.

It is an interprime number because it is at equal distance from previous prime (561582386877991) and next prime (561582386878031).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 561582386878011 - 2²⁹ = 561581850007099 is a prime.

It is a super-2 number, since 2×561582386878011² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (561582386878031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2448852205 + ... + 2449081518.

It is an arithmetic number, because the mean of its divisors is an integer number (93599513465640).

Almost surely, 2^{561582386878011} is an apocalyptic number.

561582386878011 is a deficient number, since it is larger than the sum of its proper divisors (187213720847109).

561582386878011 is a wasteful number, since it uses less digits than its factorization.

561582386878011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4897971945.

The product of its (nonzero) digits is 154828800, while the sum is 69.

The spelling of 561582386878011 in words is "five hundred sixty-one trillion, five hundred eighty-two billion, three hundred eighty-six million, eight hundred seventy-eight thousand, eleven".