61470884273569 has 27 divisors (see below), whose sum is σ = 63473407068267. Its totient is φ = 59530361664384.

The previous prime is 61470884273563. The next prime is 61470884273599. The reversal of 61470884273569 is 96537248807416.

The square root of 61470884273569 is 7840337.

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

It can be written as a sum of positive squares in 13 ways, for example, as 6350475600225 + 55120408673344 = 2520015^2 + 7424312^2 .

It is not a de Polignac number, because 61470884273569 - 2²⁹ = 61470347402657 is a prime.

It is a super-2 number, since 2×61470884273569² (a number of 28 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 = 61470884273498 and 61470884273507.

It is not an unprimeable number, because it can be changed into a prime (61470884273563) 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, 90798942459 + ... + 90798943135.

It is a 1-persistent number, because it is pandigital, but 2⋅61470884273569 = 122941768547138 is not.

Almost surely, 2^{61470884273569} is an apocalyptic number.

61470884273569 is the 7840337-th square number.

61470884273569 is the 3920169-th centered octagonal number.

It is an amenable number.

61470884273569 is a deficient number, since it is larger than the sum of its proper divisors (2002522794698).

61470884273569 is an frugal number, since it uses more digits than its factorization.

61470884273569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 487710720, while the sum is 70.

The spelling of 61470884273569 in words is "sixty-one trillion, four hundred seventy billion, eight hundred eighty-four million, two hundred seventy-three thousand, five hundred sixty-nine".