6506125694 has 4 divisors (see below), whose sum is σ = 9759188544. Its totient is φ = 3253062846.

The previous prime is 6506125693. The next prime is 6506125697. The reversal of 6506125694 is 4965216056.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×6506125694² = 84659343092253963272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6506125693) 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 as a sum of consecutive naturals, namely, 1626531422 + ... + 1626531425.

It is an arithmetic number, because the mean of its divisors is an integer number (2439797136).

Almost surely, 2^6506125694 is an apocalyptic number.

6506125694 is a deficient number, since it is larger than the sum of its proper divisors (3253062850).

6506125694 is a wasteful number, since it uses less digits than its factorization.

6506125694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3253062849.

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 6506125694 is about 80660.5584781063. The cubic root of 6506125694 is about 1866.8416564197.

The spelling of 6506125694 in words is "six billion, five hundred six million, one hundred twenty-five thousand, six hundred ninety-four".