6497272737990 has 48 divisors (see below), whose sum is σ = 17145042106608. Its totient is φ = 1706746269888.

The previous prime is 6497272737979. The next prime is 6497272738003. The reversal of 6497272737990 is 997372727946.

6497272737990 is a `hidden beast` number, since 6 + 497 + 27 + 27 + 3 + 7 + 9 + 90 = 666.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 538739637 + ... + 538751696.

It is an arithmetic number, because the mean of its divisors is an integer number (357188377221).

Almost surely, 2^{6497272737990} is an apocalyptic number.

6497272737990 is an abundant number, since it is smaller than the sum of its proper divisors (10647769368618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6497272737990 is a wasteful number, since it uses less digits than its factorization.

6497272737990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077491413 (or 1077491410 counting only the distinct ones).

The product of its (nonzero) digits is 504094752, while the sum is 72.

The spelling of 6497272737990 in words is "six trillion, four hundred ninety-seven billion, two hundred seventy-two million, seven hundred thirty-seven thousand, nine hundred ninety".