5649856589465 has 24 divisors (see below), whose sum is σ = 7455267423240. Its totient is φ = 4107299454720.

The previous prime is 5649856589449. The next prime is 5649856589473.

5649856589465 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 2412840302224 + 3237016287241 = 1553332^2 + 1799171^2 .

It is not a de Polignac number, because 5649856589465 - 2⁴ = 5649856589449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5649856589465.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441620 + ... + 3390389.

It is an arithmetic number, because the mean of its divisors is an integer number (310636142635).

Almost surely, 2^{5649856589465} is an apocalyptic number.

5649856589465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5649856589465 is a deficient number, since it is larger than the sum of its proper divisors (1805410833775).

5649856589465 is a wasteful number, since it uses less digits than its factorization.

5649856589465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834473 (or 3834462 counting only the distinct ones).

The product of its digits is 11197440000, while the sum is 80.

The spelling of 5649856589465 in words is "five trillion, six hundred forty-nine billion, eight hundred fifty-six million, five hundred eighty-nine thousand, four hundred sixty-five".