6854948557 has 2 divisors, whose sum is σ = 6854948558. Its totient is φ = 6854948556.

The previous prime is 6854948533. The next prime is 6854948561. The reversal of 6854948557 is 7558494586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6093519721 + 761428836 = 78061^2 + 27594^2 .

It is a cyclic number.

It is not a de Polignac number, because 6854948557 - 2¹¹ = 6854946509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6854948495 and 6854948504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6854948657) 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 as a sum of consecutive naturals, namely, 3427474278 + 3427474279.

It is an arithmetic number, because the mean of its divisors is an integer number (3427474279).

Almost surely, 2^6854948557 is an apocalyptic number.

It is an amenable number.

6854948557 is a deficient number, since it is larger than the sum of its proper divisors (1).

6854948557 is an equidigital number, since it uses as much as digits as its factorization.

6854948557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384000, while the sum is 61.

The square root of 6854948557 is about 82794.6167150981. The cubic root of 6854948557 is about 1899.6258318598.

The spelling of 6854948557 in words is "six billion, eight hundred fifty-four million, nine hundred forty-eight thousand, five hundred fifty-seven".