7651523489 has 4 divisors (see below), whose sum is σ = 8101613124. Its totient is φ = 7201433856.

The previous prime is 7651523483. The next prime is 7651523513. The reversal of 7651523489 is 9843251567.

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: 9843251567 = 239 ⋅41185153.

It can be written as a sum of positive squares in 2 ways, for example, as 2947621264 + 4703902225 = 54292^2 + 68585^2 .

It is a cyclic number.

It is not a de Polignac number, because 7651523489 - 2⁸ = 7651523233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7651523483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225044792 + ... + 225044825.

It is an arithmetic number, because the mean of its divisors is an integer number (2025403281).

Almost surely, 2^7651523489 is an apocalyptic number.

It is an amenable number.

7651523489 is a deficient number, since it is larger than the sum of its proper divisors (450089635).

7651523489 is a wasteful number, since it uses less digits than its factorization.

7651523489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450089634.

The product of its digits is 1814400, while the sum is 50.

The square root of 7651523489 is about 87472.9871960481. The cubic root of 7651523489 is about 1970.5281283927.

The spelling of 7651523489 in words is "seven billion, six hundred fifty-one million, five hundred twenty-three thousand, four hundred eighty-nine".