6858402553 has 2 divisors, whose sum is σ = 6858402554. Its totient is φ = 6858402552.

The previous prime is 6858402493. The next prime is 6858402559. The reversal of 6858402553 is 3552048586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6706299664 + 152102889 = 81892^2 + 12333^2 .

It is a cyclic number.

It is not a de Polignac number, because 6858402553 - 2⁹ = 6858402041 is a prime.

It is not a weakly prime, because it can be changed into another prime (6858402559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3429201276 + 3429201277.

It is an arithmetic number, because the mean of its divisors is an integer number (3429201277).

Almost surely, 2^6858402553 is an apocalyptic number.

It is an amenable number.

6858402553 is a deficient number, since it is larger than the sum of its proper divisors (1).

6858402553 is an equidigital number, since it uses as much as digits as its factorization.

6858402553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152000, while the sum is 46.

The square root of 6858402553 is about 82815.4729081468. The cubic root of 6858402553 is about 1899.9448324702.

The spelling of 6858402553 in words is "six billion, eight hundred fifty-eight million, four hundred two thousand, five hundred fifty-three".