87772196163 has 4 divisors (see below), whose sum is σ = 117029594888. Its totient is φ = 58514797440.

The previous prime is 87772196159. The next prime is 87772196173. The reversal of 87772196163 is 36169127778.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 87772196163 - 2² = 87772196159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87772196173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14628699358 + ... + 14628699363.

It is an arithmetic number, because the mean of its divisors is an integer number (29257398722).

Almost surely, 2^87772196163 is an apocalyptic number.

87772196163 is a deficient number, since it is larger than the sum of its proper divisors (29257398725).

87772196163 is a wasteful number, since it uses less digits than its factorization.

87772196163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29257398724.

The product of its digits is 5334336, while the sum is 57.

The spelling of 87772196163 in words is "eighty-seven billion, seven hundred seventy-two million, one hundred ninety-six thousand, one hundred sixty-three".