856954070299 has 2 divisors, whose sum is σ = 856954070300. Its totient is φ = 856954070298.

The previous prime is 856954070293. The next prime is 856954070309. The reversal of 856954070299 is 992070459658.

856954070299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 856954070299 - 2³⁹ = 307198256411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 856954070299.

It is not a weakly prime, because it can be changed into another prime (856954070293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428477035149 + 428477035150.

It is an arithmetic number, because the mean of its divisors is an integer number (428477035150).

Almost surely, 2^856954070299 is an apocalyptic number.

856954070299 is a deficient number, since it is larger than the sum of its proper divisors (1).

856954070299 is an equidigital number, since it uses as much as digits as its factorization.

856954070299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48988800, while the sum is 64.

The spelling of 856954070299 in words is "eight hundred fifty-six billion, nine hundred fifty-four million, seventy thousand, two hundred ninety-nine".