87102988478679 has 16 divisors (see below), whose sum is σ = 122936054313600. Its totient is φ = 54762424189536.

The previous prime is 87102988478663. The next prime is 87102988478689. The reversal of 87102988478679 is 97687488920178.

It is a happy number.

It is not a de Polignac number, because 87102988478679 - 2⁴ = 87102988478663 is a prime.

It is a super-2 number, since 2×87102988478679² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87102988478689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11641668069 + ... + 11641675550.

It is an arithmetic number, because the mean of its divisors is an integer number (7683503394600).

Almost surely, 2^{87102988478679} is an apocalyptic number.

87102988478679 is a deficient number, since it is larger than the sum of its proper divisors (35833065834921).

87102988478679 is a wasteful number, since it uses less digits than its factorization.

87102988478679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23283343694.

The product of its (nonzero) digits is 5462360064, while the sum is 84.

The spelling of 87102988478679 in words is "eighty-seven trillion, one hundred two billion, nine hundred eighty-eight million, four hundred seventy-eight thousand, six hundred seventy-nine".