87700007777 has 4 divisors (see below), whose sum is σ = 92315797680. Its totient is φ = 83084217876.

The previous prime is 87700007741. The next prime is 87700007803. The reversal of 87700007777 is 77770000778.

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 87700007777 - 2¹⁰ = 87700006753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87700007077) 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, 2307894923 + ... + 2307894960.

It is an arithmetic number, because the mean of its divisors is an integer number (23078949420).

Almost surely, 2^87700007777 is an apocalyptic number.

It is an amenable number.

87700007777 is a deficient number, since it is larger than the sum of its proper divisors (4615789903).

87700007777 is a wasteful number, since it uses less digits than its factorization.

87700007777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4615789902.

The product of its (nonzero) digits is 941192, while the sum is 50.

The spelling of 87700007777 in words is "eighty-seven billion, seven hundred million, seven thousand, seven hundred seventy-seven".