87872530273265 has 4 divisors (see below), whose sum is σ = 105447036327924. Its totient is φ = 70298024218608.

The previous prime is 87872530273223. The next prime is 87872530273301. The reversal of 87872530273265 is 56237203527878.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63142666567696 + 24729863705569 = 7946236^2 + 4972913^2 .

It is a cyclic number.

It is not a de Polignac number, because 87872530273265 - 2¹⁴ = 87872530256881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8787253027322 + ... + 8787253027331.

It is an arithmetic number, because the mean of its divisors is an integer number (26361759081981).

Almost surely, 2^{87872530273265} is an apocalyptic number.

It is an amenable number.

87872530273265 is a deficient number, since it is larger than the sum of its proper divisors (17574506054659).

87872530273265 is a wasteful number, since it uses less digits than its factorization.

87872530273265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17574506054658.

The product of its (nonzero) digits is 237081600, while the sum is 65.

The spelling of 87872530273265 in words is "eighty-seven trillion, eight hundred seventy-two billion, five hundred thirty million, two hundred seventy-three thousand, two hundred sixty-five".