1956894474242 has 16 divisors (see below), whose sum is σ = 2942641420992. Its totient is φ = 976014518640.

The previous prime is 1956894474239. The next prime is 1956894474253. The reversal of 1956894474242 is 2424744986591.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7725323 + ... + 7974609.

It is an arithmetic number, because the mean of its divisors is an integer number (183915088812).

Almost surely, 2^{1956894474242} is an apocalyptic number.

1956894474242 is a deficient number, since it is larger than the sum of its proper divisors (985746946750).

1956894474242 is a wasteful number, since it uses less digits than its factorization.

1956894474242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259033.

The product of its digits is 139345920, while the sum is 65.

The spelling of 1956894474242 in words is "one trillion, nine hundred fifty-six billion, eight hundred ninety-four million, four hundred seventy-four thousand, two hundred forty-two".