1051488916481 has 4 divisors (see below), whose sum is σ = 1068726439764. Its totient is φ = 1034251393200.

The previous prime is 1051488916477. The next prime is 1051488916483. The reversal of 1051488916481 is 1846198841501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 587399616400 + 464089300081 = 766420^2 + 681241^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051488916481 - 2² = 1051488916477 is a prime.

It is a super-2 number, since 2×1051488916481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051488916483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8618761550 + ... + 8618761671.

It is an arithmetic number, because the mean of its divisors is an integer number (267181609941).

Almost surely, 2^{1051488916481} is an apocalyptic number.

It is an amenable number.

1051488916481 is a deficient number, since it is larger than the sum of its proper divisors (17237523283).

1051488916481 is an equidigital number, since it uses as much as digits as its factorization.

1051488916481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17237523282.

The product of its (nonzero) digits is 2211840, while the sum is 56.

The spelling of 1051488916481 in words is "one trillion, fifty-one billion, four hundred eighty-eight million, nine hundred sixteen thousand, four hundred eighty-one".