8542777347 has 20 divisors (see below), whose sum is σ = 13743083200. Its totient is φ = 5257093104.

The previous prime is 8542777339. The next prime is 8542777357. The reversal of 8542777347 is 7437772458.

It is not a de Polignac number, because 8542777347 - 2³ = 8542777339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8542777293 and 8542777302.

It is not an unprimeable number, because it can be changed into a prime (8542777357) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4055347 + ... + 4057452.

It is an arithmetic number, because the mean of its divisors is an integer number (687154160).

Almost surely, 2^8542777347 is an apocalyptic number.

8542777347 is a deficient number, since it is larger than the sum of its proper divisors (5200305853).

8542777347 is a wasteful number, since it uses less digits than its factorization.

8542777347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8112824 (or 8112815 counting only the distinct ones).

The product of its digits is 9219840, while the sum is 54.

The square root of 8542777347 is about 92427.1461584745. The cubic root of 8542777347 is about 2044.2453997787.

The spelling of 8542777347 in words is "eight billion, five hundred forty-two million, seven hundred seventy-seven thousand, three hundred forty-seven".