1492681266421 has 8 divisors (see below), whose sum is σ = 1493521556184. Its totient is φ = 1491841117440.

The previous prime is 1492681266331. The next prime is 1492681266467. The reversal of 1492681266421 is 1246621862941.

It can be written as a sum of positive squares in 4 ways, for example, as 748076227396 + 744605039025 = 864914^2 + 862905^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1492681266421 - 2⁹ = 1492681265909 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 (1492681266721) by changing a digit.

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, 26714505 + ... + 26770321.

It is an arithmetic number, because the mean of its divisors is an integer number (186690194523).

Almost surely, 2^{1492681266421} is an apocalyptic number.

It is an amenable number.

1492681266421 is a deficient number, since it is larger than the sum of its proper divisors (840289763).

1492681266421 is a wasteful number, since it uses less digits than its factorization.

1492681266421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70391.

The product of its digits is 1990656, while the sum is 52.

The spelling of 1492681266421 in words is "one trillion, four hundred ninety-two billion, six hundred eighty-one million, two hundred sixty-six thousand, four hundred twenty-one".