5661472613 has 4 divisors (see below), whose sum is σ = 5714383680. Its totient is φ = 5608561548.

The previous prime is 5661472603. The next prime is 5661472631. The reversal of 5661472613 is 3162741665.

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 5661472613 - 2⁸ = 5661472357 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 (5661472603) 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, 26455373 + ... + 26455586.

It is an arithmetic number, because the mean of its divisors is an integer number (1428595920).

Almost surely, 2^5661472613 is an apocalyptic number.

It is an amenable number.

5661472613 is a deficient number, since it is larger than the sum of its proper divisors (52911067).

5661472613 is a wasteful number, since it uses less digits than its factorization.

5661472613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52911066.

The product of its digits is 181440, while the sum is 41.

The square root of 5661472613 is about 75242.7578774197. The cubic root of 5661472613 is about 1782.2822021638.

The spelling of 5661472613 in words is "five billion, six hundred sixty-one million, four hundred seventy-two thousand, six hundred thirteen".