7662857049 has 12 divisors (see below), whose sum is σ = 11719663956. Its totient is φ = 4808067072.

The previous prime is 7662857023. The next prime is 7662857051. The reversal of 7662857049 is 9407582667.

7662857049 is a `hidden beast` number, since 7 + 6 + 6 + 28 + 570 + 49 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6729249024 + 933608025 = 82032^2 + 30555^2 .

It is not a de Polignac number, because 7662857049 - 2¹³ = 7662848857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7662856986 and 7662857004.

It is not an unprimeable number, because it can be changed into a prime (7662856049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25041864 + ... + 25042169.

It is an arithmetic number, because the mean of its divisors is an integer number (976638663).

Almost surely, 2^7662857049 is an apocalyptic number.

It is an amenable number.

7662857049 is a deficient number, since it is larger than the sum of its proper divisors (4056806907).

7662857049 is a wasteful number, since it uses less digits than its factorization.

7662857049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50084056 (or 50084053 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The square root of 7662857049 is about 87537.7464240427. The cubic root of 7662857049 is about 1971.5005744316.

The spelling of 7662857049 in words is "seven billion, six hundred sixty-two million, eight hundred fifty-seven thousand, forty-nine".