1391946127946 has 16 divisors (see below), whose sum is σ = 2282714136000. Its totient is φ = 631318310880.

The previous prime is 1391946127883. The next prime is 1391946127973. The reversal of 1391946127946 is 6497216491931.

It is a super-3 number, since 3×1391946127946³ (a number of 37 digits) contains 333 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 69213446 + ... + 69233553.

It is an arithmetic number, because the mean of its divisors is an integer number (142669633500).

Almost surely, 2^{1391946127946} is an apocalyptic number.

1391946127946 is a deficient number, since it is larger than the sum of its proper divisors (890768008054).

1391946127946 is a wasteful number, since it uses less digits than its factorization.

1391946127946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138447469.

The product of its digits is 17635968, while the sum is 62.

The spelling of 1391946127946 in words is "one trillion, three hundred ninety-one billion, nine hundred forty-six million, one hundred twenty-seven thousand, nine hundred forty-six".