8357661471711 has 4 divisors (see below), whose sum is σ = 11143548628952. Its totient is φ = 5571774314472.

The previous prime is 8357661471707. The next prime is 8357661471781. The reversal of 8357661471711 is 1171741667538.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8357661471711 - 2² = 8357661471707 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 (8357661471781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392943578616 + ... + 1392943578621.

It is an arithmetic number, because the mean of its divisors is an integer number (2785887157238).

Almost surely, 2^{8357661471711} is an apocalyptic number.

8357661471711 is a deficient number, since it is larger than the sum of its proper divisors (2785887157241).

8357661471711 is a wasteful number, since it uses less digits than its factorization.

8357661471711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785887157240.

The product of its digits is 5927040, while the sum is 57.

The spelling of 8357661471711 in words is "eight trillion, three hundred fifty-seven billion, six hundred sixty-one million, four hundred seventy-one thousand, seven hundred eleven".