7523408649 has 4 divisors (see below), whose sum is σ = 10031211536. Its totient is φ = 5015605764.

The previous prime is 7523408597. The next prime is 7523408707. The reversal of 7523408649 is 9468043257.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7523408649 - 2¹¹ = 7523406601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7523408598 and 7523408607.

It is not an unprimeable number, because it can be changed into a prime (7523408149) 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, 1253901439 + ... + 1253901444.

It is an arithmetic number, because the mean of its divisors is an integer number (2507802884).

Almost surely, 2^7523408649 is an apocalyptic number.

It is an amenable number.

7523408649 is a deficient number, since it is larger than the sum of its proper divisors (2507802887).

7523408649 is a wasteful number, since it uses less digits than its factorization.

7523408649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507802886.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The square root of 7523408649 is about 86737.5849848265. The cubic root of 7523408649 is about 1959.4681891358.

The spelling of 7523408649 in words is "seven billion, five hundred twenty-three million, four hundred eight thousand, six hundred forty-nine".