87077477759 has 4 divisors (see below), whose sum is σ = 87310929816. Its totient is φ = 86844025704.

The previous prime is 87077477743. The next prime is 87077477777. The reversal of 87077477759 is 95777477078.

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

It is a cyclic number.

It is not a de Polignac number, because 87077477759 - 2⁴ = 87077477743 is a prime.

It is a super-4 number, since 4×87077477759⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87077477719) 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, 116725469 + ... + 116726214.

It is an arithmetic number, because the mean of its divisors is an integer number (21827732454).

Almost surely, 2^87077477759 is an apocalyptic number.

87077477759 is a deficient number, since it is larger than the sum of its proper divisors (233452057).

87077477759 is a wasteful number, since it uses less digits than its factorization.

87077477759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233452056.

The product of its (nonzero) digits is 169414560, while the sum is 68.

The spelling of 87077477759 in words is "eighty-seven billion, seventy-seven million, four hundred seventy-seven thousand, seven hundred fifty-nine".