5648778465 has 32 divisors (see below), whose sum is σ = 9878067072. Its totient is φ = 2733696000.

The previous prime is 5648778461. The next prime is 5648778467.

5648778465 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5648778465 - 2² = 5648778461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5648778399 and 5648778408.

It is not an unprimeable number, because it can be changed into a prime (5648778461) 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 31 ways as a sum of consecutive naturals, for example, 57625 + ... + 120905.

It is an arithmetic number, because the mean of its divisors is an integer number (308689596).

Almost surely, 2^5648778465 is an apocalyptic number.

5648778465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5648778465 is a deficient number, since it is larger than the sum of its proper divisors (4229288607).

5648778465 is a wasteful number, since it uses less digits than its factorization.

5648778465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63841.

The product of its digits is 45158400, while the sum is 60.

The square root of 5648778465 is about 75158.3559226784. The cubic root of 5648778465 is about 1780.9491282283.

The spelling of 5648778465 in words is "five billion, six hundred forty-eight million, seven hundred seventy-eight thousand, four hundred sixty-five".