4939815649 has 8 divisors (see below), whose sum is σ = 4950330048. Its totient is φ = 4929314160.

The previous prime is 4939815623. The next prime is 4939815677. The reversal of 4939815649 is 9465189394.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4939815649 is a prime.

It is a super-2 number, since 2×4939815649² = 48803557292210582402, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4939815593 and 4939815602.

It is not an unprimeable number, because it can be changed into a prime (4939815449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1157179 + ... + 1161439.

It is an arithmetic number, because the mean of its divisors is an integer number (618791256).

Almost surely, 2^4939815649 is an apocalyptic number.

It is an amenable number.

4939815649 is a deficient number, since it is larger than the sum of its proper divisors (10514399).

4939815649 is a wasteful number, since it uses less digits than its factorization.

4939815649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6455.

The product of its digits is 8398080, while the sum is 58.

The square root of 4939815649 is about 70283.8221001106. The cubic root of 4939815649 is about 1703.0873135982.

The spelling of 4939815649 in words is "four billion, nine hundred thirty-nine million, eight hundred fifteen thousand, six hundred forty-nine".