5278165654 has 16 divisors (see below), whose sum is σ = 7948887408. Its totient is φ = 2628549792.

The previous prime is 5278165639. The next prime is 5278165691. The reversal of 5278165654 is 4565618725.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 5278165598 and 5278165607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1209244 + ... + 1213600.

It is an arithmetic number, because the mean of its divisors is an integer number (496805463).

Almost surely, 2^5278165654 is an apocalyptic number.

5278165654 is a deficient number, since it is larger than the sum of its proper divisors (2670721754).

5278165654 is a wasteful number, since it uses less digits than its factorization.

5278165654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6639.

The product of its digits is 2016000, while the sum is 49.

The square root of 5278165654 is about 72650.9852238770. The cubic root of 5278165654 is about 1741.1158621720.

The spelling of 5278165654 in words is "five billion, two hundred seventy-eight million, one hundred sixty-five thousand, six hundred fifty-four".