6497970357 has 16 divisors (see below), whose sum is σ = 8948164608. Its totient is φ = 4190025840.

The previous prime is 6497970343. The next prime is 6497970359. The reversal of 6497970357 is 7530797946.

It is not a de Polignac number, because 6497970357 - 2¹⁶ = 6497904821 is a prime.

It is a super-3 number, since 3×6497970357³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6497970297 and 6497970306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6497970359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168838 + ... + 203720.

It is an arithmetic number, because the mean of its divisors is an integer number (559260288).

Almost surely, 2^6497970357 is an apocalyptic number.

It is an amenable number.

6497970357 is a deficient number, since it is larger than the sum of its proper divisors (2450194251).

6497970357 is a wasteful number, since it uses less digits than its factorization.

6497970357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36920.

The product of its (nonzero) digits is 10001880, while the sum is 57.

The square root of 6497970357 is about 80609.9891886855. The cubic root of 6497970357 is about 1866.0613103628.

The spelling of 6497970357 in words is "six billion, four hundred ninety-seven million, nine hundred seventy thousand, three hundred fifty-seven".