6450709934257 has 8 divisors (see below), whose sum is σ = 6614860782816. Its totient is φ = 6287201555712.

The previous prime is 6450709934243. The next prime is 6450709934309. The reversal of 6450709934257 is 7524399070546.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6450709934257 - 2³⁵ = 6416350195889 is a prime.

It is a super-2 number, since 2×6450709934257² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6450709934195 and 6450709934204.

It is not an unprimeable number, because it can be changed into a prime (6450709934237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160597168 + ... + 160637329.

It is an arithmetic number, because the mean of its divisors is an integer number (826857597852).

Almost surely, 2^{6450709934257} is an apocalyptic number.

It is an amenable number.

6450709934257 is a deficient number, since it is larger than the sum of its proper divisors (164150848559).

6450709934257 is a wasteful number, since it uses less digits than its factorization.

6450709934257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321235007.

The product of its (nonzero) digits is 57153600, while the sum is 61.

The spelling of 6450709934257 in words is "six trillion, four hundred fifty billion, seven hundred nine million, nine hundred thirty-four thousand, two hundred fifty-seven".