857151514409 has 2 divisors, whose sum is σ = 857151514410. Its totient is φ = 857151514408.

The previous prime is 857151514339. The next prime is 857151514463. The reversal of 857151514409 is 904415151758.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 481386192400 + 375765322009 = 693820^2 + 612997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-857151514409 is a prime.

It is not a weakly prime, because it can be changed into another prime (857151514909) 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, 428575757204 + 428575757205.

It is an arithmetic number, because the mean of its divisors is an integer number (428575757205).

Almost surely, 2^857151514409 is an apocalyptic number.

It is an amenable number.

857151514409 is a deficient number, since it is larger than the sum of its proper divisors (1).

857151514409 is an equidigital number, since it uses as much as digits as its factorization.

857151514409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008000, while the sum is 50.

The spelling of 857151514409 in words is "eight hundred fifty-seven billion, one hundred fifty-one million, five hundred fourteen thousand, four hundred nine".