395488796641 has 9 divisors (see below), whose sum is σ = 397195970899. Its totient is φ = 393788936704.

The previous prime is 395488796617. The next prime is 395488796699. The reversal of 395488796641 is 146697884593.

It is a happy number.

The square root of 395488796641 is 628879.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 389357280225 + 6131516416 = 623985^2 + 78304^2 .

It is not a de Polignac number, because 395488796641 - 2¹⁹ = 395488272353 is a prime.

It is a super-2 number, since 2×395488796641² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395488796141) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 161620680 + ... + 161623126.

Almost surely, 2^395488796641 is an apocalyptic number.

395488796641 is the 628879-th square number.

395488796641 is the 314440-th centered octagonal number.

It is an amenable number.

395488796641 is a deficient number, since it is larger than the sum of its proper divisors (1707174258).

395488796641 is an frugal number, since it uses more digits than its factorization.

395488796641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5408 (or 2704 counting only the distinct ones).

The product of its digits is 313528320, while the sum is 70.

The spelling of 395488796641 in words is "three hundred ninety-five billion, four hundred eighty-eight million, seven hundred ninety-six thousand, six hundred forty-one".