395061728471 has 2 divisors, whose sum is σ = 395061728472. Its totient is φ = 395061728470.

The previous prime is 395061728461. The next prime is 395061728489. The reversal of 395061728471 is 174827160593.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395061728471 is a prime.

It is a super-3 number, since 3×395061728471³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395061728461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197530864235 + 197530864236.

It is an arithmetic number, because the mean of its divisors is an integer number (197530864236).

It is a 1-persistent number, because it is pandigital, but 2⋅395061728471 = 790123456942 is not.

Almost surely, 2^395061728471 is an apocalyptic number.

395061728471 is a deficient number, since it is larger than the sum of its proper divisors (1).

395061728471 is an equidigital number, since it uses as much as digits as its factorization.

395061728471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 395061728471 in words is "three hundred ninety-five billion, sixty-one million, seven hundred twenty-eight thousand, four hundred seventy-one".