87812874573 has 16 divisors (see below), whose sum is σ = 119254316736. Its totient is φ = 57462894720.

The previous prime is 87812874511. The next prime is 87812874593. The reversal of 87812874573 is 37547821878.

It is not a de Polignac number, because 87812874573 - 2¹² = 87812870477 is a prime.

It is a super-2 number, since 2×87812874573² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87812874593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 720886 + ... + 833847.

It is an arithmetic number, because the mean of its divisors is an integer number (7453394796).

Almost surely, 2^87812874573 is an apocalyptic number.

It is an amenable number.

87812874573 is a deficient number, since it is larger than the sum of its proper divisors (31441442163).

87812874573 is a wasteful number, since it uses less digits than its factorization.

87812874573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555084.

The product of its digits is 21073920, while the sum is 60.

The spelling of 87812874573 in words is "eighty-seven billion, eight hundred twelve million, eight hundred seventy-four thousand, five hundred seventy-three".