4819797657 has 6 divisors (see below), whose sum is σ = 6961929962. Its totient is φ = 3213198432.

The previous prime is 4819797629. The next prime is 4819797751. The reversal of 4819797657 is 7567979184.

4819797657 is a `hidden beast` number, since 481 + 9 + 7 + 97 + 65 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3238065216 + 1581732441 = 56904^2 + 39771^2 .

It is not a de Polignac number, because 4819797657 - 2¹⁵ = 4819764889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4819797594 and 4819797603.

It is not an unprimeable number, because it can be changed into a prime (4819797607) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 267766528 + ... + 267766545.

Almost surely, 2^4819797657 is an apocalyptic number.

It is an amenable number.

4819797657 is a deficient number, since it is larger than the sum of its proper divisors (2142132305).

4819797657 is a wasteful number, since it uses less digits than its factorization.

4819797657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535533079 (or 535533076 counting only the distinct ones).

The product of its digits is 26671680, while the sum is 63.

The square root of 4819797657 is about 69424.7625635119. The cubic root of 4819797657 is about 1689.1813147770.

The spelling of 4819797657 in words is "four billion, eight hundred nineteen million, seven hundred ninety-seven thousand, six hundred fifty-seven".