87353334820 has 24 divisors (see below), whose sum is σ = 194232709944. Its totient is φ = 32885961216.

The previous prime is 87353334791. The next prime is 87353334821. The reversal of 87353334820 is 2843335378.

It can be written as a sum of positive squares in 4 ways, for example, as 10199384064 + 77153950756 = 100992^2 + 277766^2 .

It is not an unprimeable number, because it can be changed into a prime (87353334821) 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, 128460447 + ... + 128461126.

It is an arithmetic number, because the mean of its divisors is an integer number (8093029581).

Almost surely, 2^87353334820 is an apocalyptic number.

It is an amenable number.

87353334820 is an abundant number, since it is smaller than the sum of its proper divisors (106879375124).

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

87353334820 is a wasteful number, since it uses less digits than its factorization.

87353334820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256921599 (or 256921597 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 87353334820 in words is "eighty-seven billion, three hundred fifty-three million, three hundred thirty-four thousand, eight hundred twenty".