561046028865 has 64 divisors (see below), whose sum is σ = 1041849188352. Its totient is φ = 252524160000.

The previous prime is 561046028857. The next prime is 561046028887. The reversal of 561046028865 is 568820640165.

It is not a de Polignac number, because 561046028865 - 2³ = 561046028857 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1635040 + ... + 1948190.

It is an arithmetic number, because the mean of its divisors is an integer number (16278893568).

Almost surely, 2^561046028865 is an apocalyptic number.

It is an amenable number.

561046028865 is a deficient number, since it is larger than the sum of its proper divisors (480803159487).

561046028865 is a wasteful number, since it uses less digits than its factorization.

561046028865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313430.

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 561046028865 in words is "five hundred sixty-one billion, forty-six million, twenty-eight thousand, eight hundred sixty-five".