1580783372869 has 8 divisors (see below), whose sum is σ = 1589253901560. Its totient is φ = 1572326475456.

The previous prime is 1580783372867. The next prime is 1580783372873. The reversal of 1580783372869 is 9682733870851.

It can be written as a sum of positive squares in 4 ways, for example, as 229872302500 + 1350911070369 = 479450^2 + 1162287^2 .

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 1580783372869 - 2¹ = 1580783372867 is a prime.

It is a super-2 number, since 2×1580783372869² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1580783372867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3175222 + ... + 3639175.

It is an arithmetic number, because the mean of its divisors is an integer number (198656737695).

Almost surely, 2^{1580783372869} is an apocalyptic number.

It is an amenable number.

1580783372869 is a deficient number, since it is larger than the sum of its proper divisors (8470528691).

1580783372869 is a wasteful number, since it uses less digits than its factorization.

1580783372869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6815639.

The product of its (nonzero) digits is 121927680, while the sum is 67.

The spelling of 1580783372869 in words is "one trillion, five hundred eighty billion, seven hundred eighty-three million, three hundred seventy-two thousand, eight hundred sixty-nine".