87816626009 has 12 divisors (see below), whose sum is σ = 102158956800. Its totient is φ = 75267766728.

The previous prime is 87816626003. The next prime is 87816626047. The reversal of 87816626009 is 90062661878.

It is not a de Polignac number, because 87816626009 - 2¹⁶ = 87816560473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87816626003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1673432 + ... + 1725110.

It is an arithmetic number, because the mean of its divisors is an integer number (8513246400).

Almost surely, 2^87816626009 is an apocalyptic number.

It is an amenable number.

87816626009 is a deficient number, since it is larger than the sum of its proper divisors (14342330791).

87816626009 is a wasteful number, since it uses less digits than its factorization.

87816626009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86372 (or 86365 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 87816626009 in words is "eighty-seven billion, eight hundred sixteen million, six hundred twenty-six thousand, nine".