87757622675778 has 64 divisors (see below), whose sum is σ = 191674874880000. Its totient is φ = 26564942616960.

The previous prime is 87757622675777. The next prime is 87757622675837.

87757622675778 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 87757622675778.

It is not an unprimeable number, because it can be changed into a prime (87757622675771) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235722223 + ... + 236094221.

It is an arithmetic number, because the mean of its divisors is an integer number (2994919920000).

Almost surely, 2^{87757622675778} is an apocalyptic number.

87757622675778 is an abundant number, since it is smaller than the sum of its proper divisors (103917252204222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87757622675778 is a wasteful number, since it uses less digits than its factorization.

87757622675778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375807.

The product of its digits is 27106329600, while the sum is 84.

The spelling of 87757622675778 in words is "eighty-seven trillion, seven hundred fifty-seven billion, six hundred twenty-two million, six hundred seventy-five thousand, seven hundred seventy-eight".