87163254770 has 8 divisors (see below), whose sum is σ = 156893858604. Its totient is φ = 34865301904.

The previous prime is 87163254751. The next prime is 87163254779. The reversal of 87163254770 is 7745236178.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 82950336121 + 4212918649 = 288011^2 + 64907^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87163254779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4358162729 + ... + 4358162748.

Almost surely, 2^87163254770 is an apocalyptic number.

87163254770 is a deficient number, since it is larger than the sum of its proper divisors (69730603834).

87163254770 is a wasteful number, since it uses less digits than its factorization.

87163254770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8716325484.

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 87163254770 in words is "eighty-seven billion, one hundred sixty-three million, two hundred fifty-four thousand, seven hundred seventy".