87567371387 has 2 divisors, whose sum is σ = 87567371388. Its totient is φ = 87567371386.

The previous prime is 87567371369. The next prime is 87567371401. The reversal of 87567371387 is 78317376578.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87567371387 - 2²² = 87563177083 is a prime.

It is not a weakly prime, because it can be changed into another prime (87567371317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43783685693 + 43783685694.

It is an arithmetic number, because the mean of its divisors is an integer number (43783685694).

Almost surely, 2^87567371387 is an apocalyptic number.

87567371387 is a deficient number, since it is larger than the sum of its proper divisors (1).

87567371387 is an equidigital number, since it uses as much as digits as its factorization.

87567371387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41489280, while the sum is 62.

The spelling of 87567371387 in words is "eighty-seven billion, five hundred sixty-seven million, three hundred seventy-one thousand, three hundred eighty-seven".