87039837798 has 16 divisors (see below), whose sum is σ = 175676738160. Its totient is φ = 28747102176.

The previous prime is 87039837791. The next prime is 87039837827. The reversal of 87039837798 is 89773893078.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87039837791) 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, 66543565 + ... + 66544872.

It is an arithmetic number, because the mean of its divisors is an integer number (10979796135).

Almost surely, 2^87039837798 is an apocalyptic number.

87039837798 is an abundant number, since it is smaller than the sum of its proper divisors (88636900362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87039837798 is a wasteful number, since it uses less digits than its factorization.

87039837798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133088551.

The product of its (nonzero) digits is 128024064, while the sum is 69.

The spelling of 87039837798 in words is "eighty-seven billion, thirty-nine million, eight hundred thirty-seven thousand, seven hundred ninety-eight".