561353434513761 has 16 divisors (see below), whose sum is σ = 749219517743360. Its totient is φ = 373861660732560.

The previous prime is 561353434513759. The next prime is 561353434513819. The reversal of 561353434513761 is 167315434353165.

It is not a de Polignac number, because 561353434513761 - 2¹ = 561353434513759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561353434313761) 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, 8759335 + ... + 34632828.

It is an arithmetic number, because the mean of its divisors is an integer number (46826219858960).

Almost surely, 2^{561353434513761} is an apocalyptic number.

It is an amenable number.

561353434513761 is a deficient number, since it is larger than the sum of its proper divisors (187866083229599).

561353434513761 is a wasteful number, since it uses less digits than its factorization.

561353434513761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43396476.

The product of its digits is 40824000, while the sum is 57.

The spelling of 561353434513761 in words is "five hundred sixty-one trillion, three hundred fifty-three billion, four hundred thirty-four million, five hundred thirteen thousand, seven hundred sixty-one".