87576960261 has 16 divisors (see below), whose sum is σ = 136705500288. Its totient is φ = 48823392000.

The previous prime is 87576960239. The next prime is 87576960293. The reversal of 87576960261 is 16206967578.

It is not a de Polignac number, because 87576960261 - 2¹⁰ = 87576959237 is a prime.

It is a super-3 number, since 3×87576960261³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87576960061) 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, 50856840 + ... + 50858561.

It is an arithmetic number, because the mean of its divisors is an integer number (8544093768).

Almost surely, 2^87576960261 is an apocalyptic number.

It is an amenable number.

87576960261 is a deficient number, since it is larger than the sum of its proper divisors (49128540027).

87576960261 is a wasteful number, since it uses less digits than its factorization.

87576960261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101715452.

The product of its (nonzero) digits is 7620480, while the sum is 57.

The spelling of 87576960261 in words is "eighty-seven billion, five hundred seventy-six million, nine hundred sixty thousand, two hundred sixty-one".