6515149929 has 16 divisors (see below), whose sum is σ = 8719294848. Its totient is φ = 4327247232.

The previous prime is 6515149909. The next prime is 6515149933. The reversal of 6515149929 is 9299415156.

It is not a de Polignac number, because 6515149929 - 2⁷ = 6515149801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6515149909) 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, 1148869 + ... + 1154525.

It is an arithmetic number, because the mean of its divisors is an integer number (544955928).

Almost surely, 2^6515149929 is an apocalyptic number.

It is an amenable number.

6515149929 is a deficient number, since it is larger than the sum of its proper divisors (2204144919).

6515149929 is a wasteful number, since it uses less digits than its factorization.

6515149929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7024.

The product of its digits is 874800, while the sum is 51.

The square root of 6515149929 is about 80716.4786707151. The cubic root of 6515149929 is about 1867.7043836172.

The spelling of 6515149929 in words is "six billion, five hundred fifteen million, one hundred forty-nine thousand, nine hundred twenty-nine".