47513216261 has 4 divisors (see below), whose sum is σ = 54300818592. Its totient is φ = 40725613932.

The previous prime is 47513216213. The next prime is 47513216273. The reversal of 47513216261 is 16261231574.

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 47513216261 - 2¹⁰ = 47513215237 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 (47513216281) 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, 3393801155 + ... + 3393801168.

It is an arithmetic number, because the mean of its divisors is an integer number (13575204648).

Almost surely, 2^47513216261 is an apocalyptic number.

It is an amenable number.

47513216261 is a deficient number, since it is larger than the sum of its proper divisors (6787602331).

47513216261 is an equidigital number, since it uses as much as digits as its factorization.

47513216261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6787602330.

The product of its digits is 60480, while the sum is 38.

The spelling of 47513216261 in words is "forty-seven billion, five hundred thirteen million, two hundred sixteen thousand, two hundred sixty-one".