395902399481 has 4 divisors (see below), whose sum is σ = 396595749264. Its totient is φ = 395209049700.

The previous prime is 395902399427. The next prime is 395902399507. The reversal of 395902399481 is 184993209593.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 184993209593 = 138679 ⋅1333967.

It is a cyclic number.

It is not a de Polignac number, because 395902399481 - 2³⁴ = 378722530297 is a prime.

It is a super-2 number, since 2×395902399481² (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 (395902399421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346674035 + ... + 346675176.

It is an arithmetic number, because the mean of its divisors is an integer number (99148937316).

Almost surely, 2^395902399481 is an apocalyptic number.

It is an amenable number.

395902399481 is a deficient number, since it is larger than the sum of its proper divisors (693349783).

395902399481 is an equidigital number, since it uses as much as digits as its factorization.

395902399481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693349782.

The product of its (nonzero) digits is 18895680, while the sum is 62.

It can be divided in two parts, 3959023 and 99481, that added together give a palindrome (4058504).

The spelling of 395902399481 in words is "three hundred ninety-five billion, nine hundred two million, three hundred ninety-nine thousand, four hundred eighty-one".