32151861671 has 2 divisors, whose sum is σ = 32151861672. Its totient is φ = 32151861670.

The previous prime is 32151861619. The next prime is 32151861683. The reversal of 32151861671 is 17616815123.

It is a strong prime.

It is an emirp because it is prime and its reverse (17616815123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32151861671 - 2¹⁰ = 32151860647 is a prime.

It is a super-2 number, since 2×32151861671² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32151861611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16075930835 + 16075930836.

It is an arithmetic number, because the mean of its divisors is an integer number (16075930836).

Almost surely, 2^32151861671 is an apocalyptic number.

32151861671 is a deficient number, since it is larger than the sum of its proper divisors (1).

32151861671 is an equidigital number, since it uses as much as digits as its factorization.

32151861671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 41.

The spelling of 32151861671 in words is "thirty-two billion, one hundred fifty-one million, eight hundred sixty-one thousand, six hundred seventy-one".