87142224177 has 12 divisors (see below), whose sum is σ = 128247047604. Its totient is φ = 56998687200.

The previous prime is 87142224161. The next prime is 87142224181. The reversal of 87142224177 is 77142224178.

87142224177 is a `hidden beast` number, since 8 + 7 + 1 + 4 + 222 + 417 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29191772736 + 57950451441 = 170856^2 + 240729^2 .

It is not a de Polignac number, because 87142224177 - 2⁴ = 87142224161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87142224977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91343574 + ... + 91344527.

It is an arithmetic number, because the mean of its divisors is an integer number (10687253967).

Almost surely, 2^87142224177 is an apocalyptic number.

It is an amenable number.

87142224177 is a deficient number, since it is larger than the sum of its proper divisors (41104823427).

87142224177 is a wasteful number, since it uses less digits than its factorization.

87142224177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182688160 (or 182688157 counting only the distinct ones).

The product of its digits is 351232, while the sum is 45.

Subtracting from 87142224177 its reverse (77142224178), we obtain a palindrome (9999999999).

The spelling of 87142224177 in words is "eighty-seven billion, one hundred forty-two million, two hundred twenty-four thousand, one hundred seventy-seven".