47777377775 has 24 divisors (see below), whose sum is σ = 60044728320. Its totient is φ = 37708644960.

The previous prime is 47777377759. The next prime is 47777377783. The reversal of 47777377775 is 57777377774.

It is not a de Polignac number, because 47777377775 - 2⁴ = 47777377759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 526292 + ... + 610358.

It is an arithmetic number, because the mean of its divisors is an integer number (2501863680).

Almost surely, 2^47777377775 is an apocalyptic number.

47777377775 is a deficient number, since it is larger than the sum of its proper divisors (12267350545).

47777377775 is a wasteful number, since it uses less digits than its factorization.

47777377775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84383 (or 84378 counting only the distinct ones).

The product of its digits is 345888060, while the sum is 68.

Subtracting 47777377775 from its reverse (57777377774), we obtain a palindrome (9999999999).

The spelling of 47777377775 in words is "forty-seven billion, seven hundred seventy-seven million, three hundred seventy-seven thousand, seven hundred seventy-five".