1880087972569 has 27 divisors (see below), whose sum is σ = 1967225530557. Its totient is φ = 1796771995200.

The previous prime is 1880087972563. The next prime is 1880087972591. The reversal of 1880087972569 is 9652797800881.

The square root of 1880087972569 is 1371163.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 203549857225 + 1676538115344 = 451165^2 + 1294812^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1880087972569 is a prime.

It is a super-2 number, since 2×1880087972569² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1880087972498 and 1880087972507.

It is not an unprimeable number, because it can be changed into a prime (1880087972563) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2979536884 + ... + 2979537514.

Almost surely, 2^{1880087972569} is an apocalyptic number.

1880087972569 is the 1371163-rd square number.

1880087972569 is the 685582-nd centered octagonal number.

It is an amenable number.

1880087972569 is a deficient number, since it is larger than the sum of its proper divisors (87137557988).

1880087972569 is an frugal number, since it uses more digits than its factorization.

1880087972569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 121927680, while the sum is 70.

The spelling of 1880087972569 in words is "one trillion, eight hundred eighty billion, eighty-seven million, nine hundred seventy-two thousand, five hundred sixty-nine".