399350269987149 has 16 divisors (see below), whose sum is σ = 591923642530304. Its totient is φ = 237826463515200.

The previous prime is 399350269987127. The next prime is 399350269987187. The reversal of 399350269987149 is 941789962053993.

It is not a de Polignac number, because 399350269987149 - 2¹⁹ = 399350269462861 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 (399350269787149) 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, 165157265122 + ... + 165157267539.

It is an arithmetic number, because the mean of its divisors is an integer number (36995227658144).

It is a 1-persistent number, because it is pandigital, but 2⋅399350269987149 = 798700539974298 is not.

Almost surely, 2^{399350269987149} is an apocalyptic number.

399350269987149 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

399350269987149 is a deficient number, since it is larger than the sum of its proper divisors (192573372543155).

399350269987149 is a wasteful number, since it uses less digits than its factorization.

399350269987149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330314532708.

The product of its (nonzero) digits is 7142567040, while the sum is 84.

The spelling of 399350269987149 in words is "three hundred ninety-nine trillion, three hundred fifty billion, two hundred sixty-nine million, nine hundred eighty-seven thousand, one hundred forty-nine".