6547998951 has 12 divisors (see below), whose sum is σ = 10185776328. Its totient is φ = 4029537744.

The previous prime is 6547998923. The next prime is 6547998959. The reversal of 6547998951 is 1598997456.

6547998951 is a `hidden beast` number, since 6 + 547 + 9 + 9 + 89 + 5 + 1 = 666.

It is not a de Polignac number, because 6547998951 - 2²² = 6543804647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6547998959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27982785 + ... + 27983018.

It is an arithmetic number, because the mean of its divisors is an integer number (848814694).

Almost surely, 2^6547998951 is an apocalyptic number.

6547998951 is a deficient number, since it is larger than the sum of its proper divisors (3637777377).

6547998951 is a wasteful number, since it uses less digits than its factorization.

6547998951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55965822 (or 55965819 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 63.

The square root of 6547998951 is about 80919.7068148421. The cubic root of 6547998951 is about 1870.8380765919.

The spelling of 6547998951 in words is "six billion, five hundred forty-seven million, nine hundred ninety-eight thousand, nine hundred fifty-one".