6149735509 has 8 divisors (see below), whose sum is σ = 6300768600. Its totient is φ = 5998752000.

The previous prime is 6149735507. The next prime is 6149735531. The reversal of 6149735509 is 9055379416.

It can be written as a sum of positive squares in 4 ways, for example, as 1813908100 + 4335827409 = 42590^2 + 65847^2 .

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 6149735509 - 2¹ = 6149735507 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 (6149735507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427567 + ... + 441715.

It is an arithmetic number, because the mean of its divisors is an integer number (787596075).

Almost surely, 2^6149735509 is an apocalyptic number.

It is an amenable number.

6149735509 is a deficient number, since it is larger than the sum of its proper divisors (151033091).

6149735509 is a wasteful number, since it uses less digits than its factorization.

6149735509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24791.

The product of its (nonzero) digits is 1020600, while the sum is 49.

The square root of 6149735509 is about 78420.2493556352. The cubic root of 6149735509 is about 1832.1125343439.

The spelling of 6149735509 in words is "six billion, one hundred forty-nine million, seven hundred thirty-five thousand, five hundred nine".