6158394477 has 6 divisors (see below), whose sum is σ = 8895458702. Its totient is φ = 4105596312.

The previous prime is 6158394461. The next prime is 6158394481. The reversal of 6158394477 is 7744938516.

6158394477 is a `hidden beast` number, since 6 + 1 + 5 + 83 + 94 + 477 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3153271716 + 3005122761 = 56154^2 + 54819^2 .

It is not a de Polignac number, because 6158394477 - 2⁴ = 6158394461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6158390477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 342133018 + ... + 342133035.

Almost surely, 2^6158394477 is an apocalyptic number.

It is an amenable number.

6158394477 is a deficient number, since it is larger than the sum of its proper divisors (2737064225).

6158394477 is a wasteful number, since it uses less digits than its factorization.

6158394477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684266059 (or 684266056 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 6158394477 is about 78475.4386862539. The cubic root of 6158394477 is about 1832.9720165055.

The spelling of 6158394477 in words is "six billion, one hundred fifty-eight million, three hundred ninety-four thousand, four hundred seventy-seven".