6140881509 has 16 divisors (see below), whose sum is σ = 9377759232. Its totient is φ = 3501490608.

The previous prime is 6140881493. The next prime is 6140881577. The reversal of 6140881509 is 9051880416.

It is not a de Polignac number, because 6140881509 - 2⁴ = 6140881493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6140883509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306069 + ... + 325514.

It is an arithmetic number, because the mean of its divisors is an integer number (586109952).

Almost surely, 2^6140881509 is an apocalyptic number.

It is an amenable number.

6140881509 is a deficient number, since it is larger than the sum of its proper divisors (3236877723).

6140881509 is a wasteful number, since it uses less digits than its factorization.

6140881509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632056.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 6140881509 is about 78363.7767657991. The cubic root of 6140881509 is about 1831.2328588144.

The spelling of 6140881509 in words is "six billion, one hundred forty million, eight hundred eighty-one thousand, five hundred nine".