87752722725778 has 16 divisors (see below), whose sum is σ = 149838641176896. Its totient is φ = 38153357706640.

The previous prime is 87752722725683. The next prime is 87752722725817.

87752722725778 is nontrivially palindromic in base 10.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 86712176101 + ... + 86712177112.

It is an arithmetic number, because the mean of its divisors is an integer number (9364915073556).

Almost surely, 2^{87752722725778} is an apocalyptic number.

87752722725778 is a deficient number, since it is larger than the sum of its proper divisors (62085918451118).

87752722725778 is a wasteful number, since it uses less digits than its factorization.

87752722725778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173424353249.

The product of its digits is 3011814400, while the sum is 76.

The spelling of 87752722725778 in words is "eighty-seven trillion, seven hundred fifty-two billion, seven hundred twenty-two million, seven hundred twenty-five thousand, seven hundred seventy-eight".