87697388578757 has 2 divisors, whose sum is σ = 87697388578758. Its totient is φ = 87697388578756.

The previous prime is 87697388578733. The next prime is 87697388578847. The reversal of 87697388578757 is 75787588379678.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86999159547556 + 698229031201 = 9327334^2 + 835601^2 .

It is a cyclic number.

It is not a de Polignac number, because 87697388578757 - 2¹⁸ = 87697388316613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87697388578757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87697388578357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43848694289378 + 43848694289379.

It is an arithmetic number, because the mean of its divisors is an integer number (43848694289379).

Almost surely, 2^{87697388578757} is an apocalyptic number.

It is an amenable number.

87697388578757 is a deficient number, since it is larger than the sum of its proper divisors (1).

87697388578757 is an equidigital number, since it uses as much as digits as its factorization.

87697388578757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 278807961600, while the sum is 95.

The spelling of 87697388578757 in words is "eighty-seven trillion, six hundred ninety-seven billion, three hundred eighty-eight million, five hundred seventy-eight thousand, seven hundred fifty-seven".