855760560979 has 2 divisors, whose sum is σ = 855760560980. Its totient is φ = 855760560978.

The previous prime is 855760560973. The next prime is 855760561001. The reversal of 855760560979 is 979065067558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 855760560979 - 2³ = 855760560971 is a prime.

It is a super-2 number, since 2×855760560979² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (855760560971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427880280489 + 427880280490.

It is an arithmetic number, because the mean of its divisors is an integer number (427880280490).

Almost surely, 2^855760560979 is an apocalyptic number.

855760560979 is a deficient number, since it is larger than the sum of its proper divisors (1).

855760560979 is an equidigital number, since it uses as much as digits as its factorization.

855760560979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142884000, while the sum is 67.

The spelling of 855760560979 in words is "eight hundred fifty-five billion, seven hundred sixty million, five hundred sixty thousand, nine hundred seventy-nine".