87678375526603 has 2 divisors, whose sum is σ = 87678375526604. Its totient is φ = 87678375526602.

The previous prime is 87678375526589. The next prime is 87678375526867. The reversal of 87678375526603 is 30662557387678.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87678375526603 is a prime.

It is not a weakly prime, because it can be changed into another prime (87678375524603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43839187763301 + 43839187763302.

It is an arithmetic number, because the mean of its divisors is an integer number (43839187763302).

Almost surely, 2^{87678375526603} is an apocalyptic number.

87678375526603 is a deficient number, since it is larger than the sum of its proper divisors (1).

87678375526603 is an equidigital number, since it uses as much as digits as its factorization.

87678375526603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2133734400, while the sum is 73.

The spelling of 87678375526603 in words is "eighty-seven trillion, six hundred seventy-eight billion, three hundred seventy-five million, five hundred twenty-six thousand, six hundred three".