87409708849 has 4 divisors (see below), whose sum is σ = 87420446064. Its totient is φ = 87398971636.

The previous prime is 87409708787. The next prime is 87409708871. The reversal of 87409708849 is 94880790478.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87409708849 - 2¹³ = 87409700657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87409708249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5356387 + ... + 5372680.

It is an arithmetic number, because the mean of its divisors is an integer number (21855111516).

Almost surely, 2^87409708849 is an apocalyptic number.

It is an amenable number.

87409708849 is a deficient number, since it is larger than the sum of its proper divisors (10737215).

87409708849 is a wasteful number, since it uses less digits than its factorization.

87409708849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10737214.

The product of its (nonzero) digits is 32514048, while the sum is 64.

The spelling of 87409708849 in words is "eighty-seven billion, four hundred nine million, seven hundred eight thousand, eight hundred forty-nine".