87162553871 has 2 divisors, whose sum is σ = 87162553872. Its totient is φ = 87162553870.

The previous prime is 87162553859. The next prime is 87162553879. The reversal of 87162553871 is 17835526178.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87162553871 is a prime.

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 (87162553879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43581276935 + 43581276936.

It is an arithmetic number, because the mean of its divisors is an integer number (43581276936).

Almost surely, 2^87162553871 is an apocalyptic number.

87162553871 is a deficient number, since it is larger than the sum of its proper divisors (1).

87162553871 is an equidigital number, since it uses as much as digits as its factorization.

87162553871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2822400, while the sum is 53.

The spelling of 87162553871 in words is "eighty-seven billion, one hundred sixty-two million, five hundred fifty-three thousand, eight hundred seventy-one".