541377000561 has 4 divisors (see below), whose sum is σ = 721836000752. Its totient is φ = 360918000372.

The previous prime is 541377000551. The next prime is 541377000569. The reversal of 541377000561 is 165000773145.

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 not a de Polignac number, because 541377000561 - 2²⁷ = 541242782833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (541377000569) 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, 90229500091 + ... + 90229500096.

It is an arithmetic number, because the mean of its divisors is an integer number (180459000188).

Almost surely, 2^541377000561 is an apocalyptic number.

It is an amenable number.

541377000561 is a deficient number, since it is larger than the sum of its proper divisors (180459000191).

541377000561 is a wasteful number, since it uses less digits than its factorization.

541377000561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180459000190.

The product of its (nonzero) digits is 88200, while the sum is 39.

The spelling of 541377000561 in words is "five hundred forty-one billion, three hundred seventy-seven million, five hundred sixty-one", and thus it is an aban number.