5140578304661 has 4 divisors (see below), whose sum is σ = 5140583395500. Its totient is φ = 5140573213824.

The previous prime is 5140578304651. The next prime is 5140578304699. The reversal of 5140578304661 is 1664038750415.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4697488382161 + 443089922500 = 2167369^2 + 665650^2 .

It is a cyclic number.

It is not a de Polignac number, because 5140578304661 - 2²⁶ = 5140511195797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5140578304651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462746 + ... + 3239643.

It is an arithmetic number, because the mean of its divisors is an integer number (1285145848875).

Almost surely, 2^{5140578304661} is an apocalyptic number.

It is an amenable number.

5140578304661 is a deficient number, since it is larger than the sum of its proper divisors (5090839).

5140578304661 is a wasteful number, since it uses less digits than its factorization.

5140578304661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5090838.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 5140578304661 in words is "five trillion, one hundred forty billion, five hundred seventy-eight million, three hundred four thousand, six hundred sixty-one".