87209464090 has 192 divisors, whose sum is σ = 192645734400. Its totient is φ = 27833173632.

The previous prime is 87209464063. The next prime is 87209464099. The reversal of 87209464090 is 9046490278.

It is not an unprimeable number, because it can be changed into a prime (87209464099) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 391073719 + ... + 391073941.

It is an arithmetic number, because the mean of its divisors is an integer number (1003363200).

Almost surely, 2^87209464090 is an apocalyptic number.

87209464090 is an abundant number, since it is smaller than the sum of its proper divisors (105436270310).

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

87209464090 is a wasteful number, since it uses less digits than its factorization.

87209464090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 87209464090 in words is "eighty-seven billion, two hundred nine million, four hundred sixty-four thousand, ninety".