399246286065 has 32 divisors (see below), whose sum is σ = 698053579776. Its totient is φ = 193244141760.

The previous prime is 399246286001. The next prime is 399246286091. The reversal of 399246286065 is 560682642993.

It is a happy number.

It is not a de Polignac number, because 399246286065 - 2⁶ = 399246286001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1964197 + ... + 2157906.

It is an arithmetic number, because the mean of its divisors is an integer number (21814174368).

Almost surely, 2^399246286065 is an apocalyptic number.

It is an amenable number.

399246286065 is a deficient number, since it is larger than the sum of its proper divisors (298807293711).

399246286065 is a wasteful number, since it uses less digits than its factorization.

399246286065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4122709.

The product of its (nonzero) digits is 33592320, while the sum is 60.

The spelling of 399246286065 in words is "three hundred ninety-nine billion, two hundred forty-six million, two hundred eighty-six thousand, sixty-five".