8539134477 has 8 divisors (see below), whose sum is σ = 11778116640. Its totient is φ = 5496454320.

The previous prime is 8539134469. The next prime is 8539134479. The reversal of 8539134477 is 7744319358.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8539134477 - 2³ = 8539134469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8539134479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49075399 + ... + 49075572.

It is an arithmetic number, because the mean of its divisors is an integer number (1472264580).

Almost surely, 2^8539134477 is an apocalyptic number.

8539134477 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

It is an amenable number.

8539134477 is a deficient number, since it is larger than the sum of its proper divisors (3238982163).

8539134477 is a wasteful number, since it uses less digits than its factorization.

8539134477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98151003.

The product of its digits is 2540160, while the sum is 51.

The square root of 8539134477 is about 92407.4373467850. The cubic root of 8539134477 is about 2043.9547847281.

The spelling of 8539134477 in words is "eight billion, five hundred thirty-nine million, one hundred thirty-four thousand, four hundred seventy-seven".