6497900136 has 512 divisors, whose sum is σ = 23740416000. Its totient is φ = 1598994432.

The previous prime is 6497900113. The next prime is 6497900183. The reversal of 6497900136 is 6310097946.

It is a junction number, because it is equal to n+sod(n) for n = 6497900091 and 6497900100.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 47429860 + ... + 47429996.

It is an arithmetic number, because the mean of its divisors is an integer number (46368000).

Almost surely, 2^6497900136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6497900136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11870208000).

6497900136 is an abundant number, since it is smaller than the sum of its proper divisors (17242515864).

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

6497900136 is a wasteful number, since it uses less digits than its factorization.

6497900136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 6497900136 is about 80609.5536273462. The cubic root of 6497900136 is about 1866.0545884093.

The spelling of 6497900136 in words is "six billion, four hundred ninety-seven million, nine hundred thousand, one hundred thirty-six".