1580879480881 has 4 divisors (see below), whose sum is σ = 1583345752164. Its totient is φ = 1578413209600.

The previous prime is 1580879480779. The next prime is 1580879480903. The reversal of 1580879480881 is 1880849780851.

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 595706112400 + 985173368481 = 771820^2 + 992559^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1580879480881 is a prime.

It is a super-2 number, since 2×1580879480881² (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 (1580879489881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1233134680 + ... + 1233135961.

It is an arithmetic number, because the mean of its divisors is an integer number (395836438041).

Almost surely, 2^{1580879480881} is an apocalyptic number.

It is an amenable number.

1580879480881 is a deficient number, since it is larger than the sum of its proper divisors (2466271283).

1580879480881 is an equidigital number, since it uses as much as digits as its factorization.

1580879480881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466271282.

The product of its (nonzero) digits is 41287680, while the sum is 67.

The spelling of 1580879480881 in words is "one trillion, five hundred eighty billion, eight hundred seventy-nine million, four hundred eighty thousand, eight hundred eighty-one".