395986290752 has 28 divisors (see below), whose sum is σ = 846230320236. Its totient is φ = 182762903040.

The previous prime is 395986290719. The next prime is 395986290779. The reversal of 395986290752 is 257092689593.

It can be written as a sum of positive squares in 2 ways, for example, as 74297675776 + 321688614976 = 272576^2 + 567176^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237971699 + ... + 237973362.

It is an arithmetic number, because the mean of its divisors is an integer number (30222511437).

Almost surely, 2^395986290752 is an apocalyptic number.

395986290752 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

395986290752 is an abundant number, since it is smaller than the sum of its proper divisors (450244029484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

395986290752 is a wasteful number, since it uses less digits than its factorization.

395986290752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475945086 (or 475945076 counting only the distinct ones).

The product of its (nonzero) digits is 73483200, while the sum is 65.

The spelling of 395986290752 in words is "three hundred ninety-five billion, nine hundred eighty-six million, two hundred ninety thousand, seven hundred fifty-two".