87880534081 has 8 divisors (see below), whose sum is σ = 88611957504. Its totient is φ = 87151553760.

The previous prime is 87880534069. The next prime is 87880534087. The reversal of 87880534081 is 18043508878.

It is a happy number.

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 87880534081 - 2⁹ = 87880533569 is a prime.

It is a super-2 number, since 2×87880534081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87880534087) 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, 538500 + ... + 682453.

It is an arithmetic number, because the mean of its divisors is an integer number (11076494688).

Almost surely, 2^87880534081 is an apocalyptic number.

It is an amenable number.

87880534081 is a deficient number, since it is larger than the sum of its proper divisors (731423423).

87880534081 is a wasteful number, since it uses less digits than its factorization.

87880534081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221551.

The product of its (nonzero) digits is 1720320, while the sum is 52.

The spelling of 87880534081 in words is "eighty-seven billion, eight hundred eighty million, five hundred thirty-four thousand, eighty-one".