5457686957 has 4 divisors (see below), whose sum is σ = 5477390076. Its totient is φ = 5437983840.

The previous prime is 5457686873. The next prime is 5457686999. The reversal of 5457686957 is 7596867545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1550311876 + 3907375081 = 39374^2 + 62509^2 .

It is a cyclic number.

It is not a de Polignac number, because 5457686957 - 2⁸ = 5457686701 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5457686957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5457686357) 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 3 ways as a sum of consecutive naturals, for example, 9851144 + ... + 9851697.

It is an arithmetic number, because the mean of its divisors is an integer number (1369347519).

Almost surely, 2^5457686957 is an apocalyptic number.

It is an amenable number.

5457686957 is a deficient number, since it is larger than the sum of its proper divisors (19703119).

5457686957 is a wasteful number, since it uses less digits than its factorization.

5457686957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19703118.

The product of its digits is 63504000, while the sum is 62.

The square root of 5457686957 is about 73876.1595983440. The cubic root of 5457686957 is about 1760.6358494765.

The spelling of 5457686957 in words is "five billion, four hundred fifty-seven million, six hundred eighty-six thousand, nine hundred fifty-seven".