4661519378 has 8 divisors (see below), whose sum is σ = 6995793468. Its totient is φ = 2329588224.

The previous prime is 4661519351. The next prime is 4661519389. The reversal of 4661519378 is 8739151664.

It can be written as a sum of positive squares in 2 ways, for example, as 4659837169 + 1682209 = 68263^2 + 1297^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4661519378² = 43459525822939013768, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 580751 + ... + 588722.

Almost surely, 2^4661519378 is an apocalyptic number.

4661519378 is a deficient number, since it is larger than the sum of its proper divisors (2334274090).

4661519378 is a wasteful number, since it uses less digits than its factorization.

4661519378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171468.

The product of its digits is 1088640, while the sum is 50.

The square root of 4661519378 is about 68275.3204166777. The cubic root of 4661519378 is about 1670.4846834411.

The spelling of 4661519378 in words is "four billion, six hundred sixty-one million, five hundred nineteen thousand, three hundred seventy-eight".