1051421837465 has 16 divisors (see below), whose sum is σ = 1282764738576. Its totient is φ = 827106508800.

The previous prime is 1051421837447. The next prime is 1051421837497. The reversal of 1051421837465 is 5647381241501.

It can be written as a sum of positive squares in 8 ways, for example, as 394720679824 + 656701157641 = 628268^2 + 810371^2 .

It is not a de Polignac number, because 1051421837465 - 2¹⁴ = 1051421821081 is a prime.

It is a super-2 number, since 2×1051421837465² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 544985 + ... + 1549145.

It is an arithmetic number, because the mean of its divisors is an integer number (80172796161).

Almost surely, 2^{1051421837465} is an apocalyptic number.

It is an amenable number.

1051421837465 is a deficient number, since it is larger than the sum of its proper divisors (231342901111).

1051421837465 is a wasteful number, since it uses less digits than its factorization.

1051421837465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007660.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 1051421837465 in words is "one trillion, fifty-one billion, four hundred twenty-one million, eight hundred thirty-seven thousand, four hundred sixty-five".