87678375526867 has 2 divisors, whose sum is σ = 87678375526868. Its totient is φ = 87678375526866.

The previous prime is 87678375526603. The next prime is 87678375526967. The reversal of 87678375526867 is 76862557387678.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87678375526867 is a prime.

It is not a weakly prime, because it can be changed into another prime (87678375526267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43839187763433 + 43839187763434.

It is an arithmetic number, because the mean of its divisors is an integer number (43839187763434).

Almost surely, 2^{87678375526867} is an apocalyptic number.

87678375526867 is a deficient number, since it is larger than the sum of its proper divisors (1).

87678375526867 is an equidigital number, since it uses as much as digits as its factorization.

87678375526867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39829708800, while the sum is 85.

The spelling of 87678375526867 in words is "eighty-seven trillion, six hundred seventy-eight billion, three hundred seventy-five million, five hundred twenty-six thousand, eight hundred sixty-seven".