1421491956452 has 24 divisors (see below), whose sum is σ = 2492618868600. Its totient is φ = 709316213760.

The previous prime is 1421491956449. The next prime is 1421491956491. The reversal of 1421491956452 is 2546591941241.

It can be written as a sum of positive squares in 4 ways, for example, as 684613927396 + 736878029056 = 827414^2 + 858416^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1421491956394 and 1421491956403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5199674 + ... + 5466222.

It is an arithmetic number, because the mean of its divisors is an integer number (103859119525).

Almost surely, 2^{1421491956452} is an apocalyptic number.

It is an amenable number.

1421491956452 is a deficient number, since it is larger than the sum of its proper divisors (1071126912148).

1421491956452 is a wasteful number, since it uses less digits than its factorization.

1421491956452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269231 (or 269229 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 53.

The spelling of 1421491956452 in words is "one trillion, four hundred twenty-one billion, four hundred ninety-one million, nine hundred fifty-six thousand, four hundred fifty-two".