87605286394 has 4 divisors (see below), whose sum is σ = 131407929594. Its totient is φ = 43802643196.

The previous prime is 87605286359. The next prime is 87605286403. The reversal of 87605286394 is 49368250678.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 87594097369 + 11189025 = 295963^2 + 3345^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21901321597 + ... + 21901321600.

Almost surely, 2^87605286394 is an apocalyptic number.

87605286394 is a deficient number, since it is larger than the sum of its proper divisors (43802643200).

87605286394 is a wasteful number, since it uses less digits than its factorization.

87605286394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43802643199.

The product of its (nonzero) digits is 17418240, while the sum is 58.

The spelling of 87605286394 in words is "eighty-seven billion, six hundred five million, two hundred eighty-six thousand, three hundred ninety-four".