395506121684 has 6 divisors (see below), whose sum is σ = 692135712954. Its totient is φ = 197753060840.

The previous prime is 395506121653. The next prime is 395506121713. The reversal of 395506121684 is 486121605593.

It can be written as a sum of positive squares in only one way, i.e., 350973304900 + 44532816784 = 592430^2 + 211028^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49438265207 + ... + 49438265214.

It is an arithmetic number, because the mean of its divisors is an integer number (115355952159).

Almost surely, 2^395506121684 is an apocalyptic number.

It is an amenable number.

395506121684 is a deficient number, since it is larger than the sum of its proper divisors (296629591270).

395506121684 is a wasteful number, since it uses less digits than its factorization.

395506121684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98876530425 (or 98876530423 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 395506121684 in words is "three hundred ninety-five billion, five hundred six million, one hundred twenty-one thousand, six hundred eighty-four".