6908542557 has 32 divisors (see below), whose sum is σ = 11112299520. Its totient is φ = 3739884912.

The previous prime is 6908542547. The next prime is 6908542601. The reversal of 6908542557 is 7552458096.

It is not a de Polignac number, because 6908542557 - 2⁸ = 6908542301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6908542547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120058 + ... + 168020.

It is an arithmetic number, because the mean of its divisors is an integer number (347259360).

Almost surely, 2^6908542557 is an apocalyptic number.

It is an amenable number.

6908542557 is a deficient number, since it is larger than the sum of its proper divisors (4203756963).

6908542557 is an equidigital number, since it uses as much as digits as its factorization.

6908542557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48030 (or 47992 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 51.

The square root of 6908542557 is about 83117.6428744223. The cubic root of 6908542557 is about 1904.5635966201.

The spelling of 6908542557 in words is "six billion, nine hundred eight million, five hundred forty-two thousand, five hundred fifty-seven".