7509426649 has 8 divisors (see below), whose sum is σ = 7751540808. Its totient is φ = 7269373440.

The previous prime is 7509426641. The next prime is 7509426679. The reversal of 7509426649 is 9466249057.

7509426649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7083747225 + 425679424 = 84165^2 + 20632^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7509426649 - 2³ = 7509426641 is a prime.

It is a super-2 number, since 2×7509426649² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7509426596 and 7509426605.

It is not an unprimeable number, because it can be changed into a prime (7509426641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507832 + ... + 522409.

It is an arithmetic number, because the mean of its divisors is an integer number (968942601).

Almost surely, 2^7509426649 is an apocalyptic number.

It is an amenable number.

7509426649 is a deficient number, since it is larger than the sum of its proper divisors (242114159).

7509426649 is a wasteful number, since it uses less digits than its factorization.

7509426649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030475.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The square root of 7509426649 is about 86656.9480711155. The cubic root of 7509426649 is about 1958.2535679735.

The spelling of 7509426649 in words is "seven billion, five hundred nine million, four hundred twenty-six thousand, six hundred forty-nine".