6497681151 has 32 divisors (see below), whose sum is σ = 9551485440. Its totient is φ = 3904560000.

The previous prime is 6497681131. The next prime is 6497681167. The reversal of 6497681151 is 1511867946.

It is a happy number.

It is not a de Polignac number, because 6497681151 - 2⁵ = 6497681119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6497681151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6497681131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 338101 + ... + 356801.

It is an arithmetic number, because the mean of its divisors is an integer number (298483920).

Almost surely, 2^6497681151 is an apocalyptic number.

6497681151 is a deficient number, since it is larger than the sum of its proper divisors (3053804289).

6497681151 is a wasteful number, since it uses less digits than its factorization.

6497681151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18927.

The product of its digits is 362880, while the sum is 48.

The square root of 6497681151 is about 80608.1953091620. The cubic root of 6497681151 is about 1866.0336256087.

The spelling of 6497681151 in words is "six billion, four hundred ninety-seven million, six hundred eighty-one thousand, one hundred fifty-one".