385696820653 has 2 divisors, whose sum is σ = 385696820654. Its totient is φ = 385696820652.

The previous prime is 385696820647. The next prime is 385696820657. The reversal of 385696820653 is 356028696583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199614155524 + 186082665129 = 446782^2 + 431373^2 .

It is a cyclic number.

It is not a de Polignac number, because 385696820653 - 2³³ = 377106886061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385696820591 and 385696820600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385696820657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192848410326 + 192848410327.

It is an arithmetic number, because the mean of its divisors is an integer number (192848410327).

Almost surely, 2^385696820653 is an apocalyptic number.

It is an amenable number.

385696820653 is a deficient number, since it is larger than the sum of its proper divisors (1).

385696820653 is an equidigital number, since it uses as much as digits as its factorization.

385696820653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55987200, while the sum is 61.

The spelling of 385696820653 in words is "three hundred eighty-five billion, six hundred ninety-six million, eight hundred twenty thousand, six hundred fifty-three".