87885261269 has 8 divisors (see below), whose sum is σ = 94650365880. Its totient is φ = 81120828096.

The previous prime is 87885261257. The next prime is 87885261271. The reversal of 87885261269 is 96216258878.

It can be written as a sum of positive squares in 4 ways, for example, as 429028369 + 87456232900 = 20713^2 + 295730^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 87885261269 - 2⁴ = 87885261253 is a prime.

It is a super-2 number, since 2×87885261269² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87885261769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122627 + ... + 436815.

It is an arithmetic number, because the mean of its divisors is an integer number (11831295735).

Almost surely, 2^87885261269 is an apocalyptic number.

It is an amenable number.

87885261269 is a deficient number, since it is larger than the sum of its proper divisors (6765104611).

87885261269 is a wasteful number, since it uses less digits than its factorization.

87885261269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335719.

The product of its digits is 23224320, while the sum is 62.

The spelling of 87885261269 in words is "eighty-seven billion, eight hundred eighty-five million, two hundred sixty-one thousand, two hundred sixty-nine".