87209324836 has 12 divisors (see below), whose sum is σ = 152623255680. Its totient is φ = 43602680360.

The previous prime is 87209324809. The next prime is 87209324861. The reversal of 87209324836 is 63842390278.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394216 + ... + 574303.

It is an arithmetic number, because the mean of its divisors is an integer number (12718604640).

Almost surely, 2^87209324836 is an apocalyptic number.

It is an amenable number.

87209324836 is a deficient number, since it is larger than the sum of its proper divisors (65413930844).

87209324836 is a wasteful number, since it uses less digits than its factorization.

87209324836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991034 (or 991032 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 87209324836 in words is "eighty-seven billion, two hundred nine million, three hundred twenty-four thousand, eight hundred thirty-six".