573870788887561 has 4 divisors (see below), whose sum is σ = 626040860604624. Its totient is φ = 521700717170500.

The previous prime is 573870788887547. The next prime is 573870788887687. The reversal of 573870788887561 is 165788887078375.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 573870788887561 - 2¹⁵ = 573870788854793 is a prime.

It is a super-3 number, since 3×573870788887561³ (a number of 45 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (573870788887511) 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, 26085035858515 + ... + 26085035858536.

It is an arithmetic number, because the mean of its divisors is an integer number (156510215151156).

Almost surely, 2^{573870788887561} is an apocalyptic number.

It is an amenable number.

573870788887561 is a deficient number, since it is larger than the sum of its proper divisors (52170071717063).

573870788887561 is a wasteful number, since it uses less digits than its factorization.

573870788887561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52170071717062.

The product of its (nonzero) digits is 35404185600, while the sum is 88.

The spelling of 573870788887561 in words is "five hundred seventy-three trillion, eight hundred seventy billion, seven hundred eighty-eight million, eight hundred eighty-seven thousand, five hundred sixty-one".