87567371329 has 2 divisors, whose sum is σ = 87567371330. Its totient is φ = 87567371328.

The previous prime is 87567371321. The next prime is 87567371351. The reversal of 87567371329 is 92317376578.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72670680625 + 14896690704 = 269575^2 + 122052^2 .

It is a cyclic number.

It is not a de Polignac number, because 87567371329 - 2³ = 87567371321 is a prime.

It is not a weakly prime, because it can be changed into another prime (87567371321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43783685664 + 43783685665.

It is an arithmetic number, because the mean of its divisors is an integer number (43783685665).

Almost surely, 2^87567371329 is an apocalyptic number.

It is an amenable number.

87567371329 is a deficient number, since it is larger than the sum of its proper divisors (1).

87567371329 is an equidigital number, since it uses as much as digits as its factorization.

87567371329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13335840, while the sum is 58.

The spelling of 87567371329 in words is "eighty-seven billion, five hundred sixty-seven million, three hundred seventy-one thousand, three hundred twenty-nine".