87611111111678 has 144 divisors (see below), whose sum is σ = 175524820636032. Its totient is φ = 32615529962400.

The previous prime is 87611111111651. The next prime is 87611111111707.

87611111111678 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 258109493 + ... + 258448703.

It is an arithmetic number, because the mean of its divisors is an integer number (1218922365528).

Almost surely, 2^{87611111111678} is an apocalyptic number.

87611111111678 is an abundant number, since it is smaller than the sum of its proper divisors (87913709524354).

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

87611111111678 is a wasteful number, since it uses less digits than its factorization.

87611111111678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340219 (or 340201 counting only the distinct ones).

The product of its digits is 112896, while the sum is 50.

It can be divided in two parts, 8761111 and 1111678, that added together give a palindrome (9872789).

The spelling of 87611111111678 in words is "eighty-seven trillion, six hundred eleven billion, one hundred eleven million, one hundred eleven thousand, six hundred seventy-eight".