7649413285 has 4 divisors (see below), whose sum is σ = 9179295948. Its totient is φ = 6119530624.

The previous prime is 7649413283. The next prime is 7649413297. The reversal of 7649413285 is 5823149467.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5823149467 = 523 ⋅11134129.

It can be written as a sum of positive squares in 2 ways, for example, as 4339252129 + 3310161156 = 65873^2 + 57534^2 .

It is a cyclic number.

It is not a de Polignac number, because 7649413285 - 2¹ = 7649413283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7649413283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764941324 + ... + 764941333.

It is an arithmetic number, because the mean of its divisors is an integer number (2294823987).

Almost surely, 2^7649413285 is an apocalyptic number.

It is an amenable number.

7649413285 is a deficient number, since it is larger than the sum of its proper divisors (1529882663).

7649413285 is a wasteful number, since it uses less digits than its factorization.

7649413285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529882662.

The product of its digits is 1451520, while the sum is 49.

The square root of 7649413285 is about 87460.9243319552. The cubic root of 7649413285 is about 1970.3469619158.

The spelling of 7649413285 in words is "seven billion, six hundred forty-nine million, four hundred thirteen thousand, two hundred eighty-five".