2456649385 has 8 divisors (see below), whose sum is σ = 2949962760. Its totient is φ = 1963997184.

The previous prime is 2456649367. The next prime is 2456649397. The reversal of 2456649385 is 5839466542.

It can be written as a sum of positive squares in 4 ways, for example, as 346257664 + 2110391721 = 18608^2 + 45939^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2456649385 - 2⁵ = 2456649353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157080 + ... + 172009.

It is an arithmetic number, because the mean of its divisors is an integer number (368745345).

Almost surely, 2^2456649385 is an apocalyptic number.

It is an amenable number.

2456649385 is a deficient number, since it is larger than the sum of its proper divisors (493313375).

2456649385 is a wasteful number, since it uses less digits than its factorization.

2456649385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330587.

The product of its digits is 6220800, while the sum is 52.

The square root of 2456649385 is about 49564.5981018711. The cubic root of 2456649385 is about 1349.3182447035.

The spelling of 2456649385 in words is "two billion, four hundred fifty-six million, six hundred forty-nine thousand, three hundred eighty-five".