399269227812479 has 16 divisors (see below), whose sum is σ = 411581185832448. Its totient is φ = 387116412215232.

The previous prime is 399269227812461. The next prime is 399269227812503. The reversal of 399269227812479 is 974218722962993.

It is a cyclic number.

It is not a de Polignac number, because 399269227812479 - 2⁴⁸ = 117794251101823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399269227812079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368673392 + ... + 369754794.

It is an arithmetic number, because the mean of its divisors is an integer number (25723824114528).

Almost surely, 2^{399269227812479} is an apocalyptic number.

399269227812479 is a deficient number, since it is larger than the sum of its proper divisors (12311958019969).

399269227812479 is a wasteful number, since it uses less digits than its factorization.

399269227812479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154974.

The product of its digits is 2962842624, while the sum is 80.

The spelling of 399269227812479 in words is "three hundred ninety-nine trillion, two hundred sixty-nine billion, two hundred twenty-seven million, eight hundred twelve thousand, four hundred seventy-nine".