855179651 has 2 divisors, whose sum is σ = 855179652. Its totient is φ = 855179650.

The previous prime is 855179641. The next prime is 855179693. The reversal of 855179651 is 156971558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 855179651 - 2⁶ = 855179587 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 855179596 and 855179605.

It is not a weakly prime, because it can be changed into another prime (855179621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427589825 + 427589826.

It is an arithmetic number, because the mean of its divisors is an integer number (427589826).

Almost surely, 2^855179651 is an apocalyptic number.

855179651 is a deficient number, since it is larger than the sum of its proper divisors (1).

855179651 is an equidigital number, since it uses as much as digits as its factorization.

855179651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378000, while the sum is 47.

The square root of 855179651 is about 29243.4548403570. The cubic root of 855179651 is about 949.1884670601.

The spelling of 855179651 in words is "eight hundred fifty-five million, one hundred seventy-nine thousand, six hundred fifty-one".