87136092820 has 48 divisors (see below), whose sum is σ = 209322610560. Its totient is φ = 29847233664.

The previous prime is 87136092803. The next prime is 87136092829. The reversal of 87136092820 is 2829063178.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87136092829) 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, 141454 + ... + 440773.

It is an arithmetic number, because the mean of its divisors is an integer number (4360887720).

Almost surely, 2^87136092820 is an apocalyptic number.

It is an amenable number.

87136092820 is an abundant number, since it is smaller than the sum of its proper divisors (122186517740).

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

87136092820 is a wasteful number, since it uses less digits than its factorization.

87136092820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583312 (or 583310 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 87136092820 in words is "eighty-seven billion, one hundred thirty-six million, ninety-two thousand, eight hundred twenty".