6467857465 has 4 divisors (see below), whose sum is σ = 7761428964. Its totient is φ = 5174285968.

The previous prime is 6467857457. The next prime is 6467857489. The reversal of 6467857465 is 5647587646.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2013496384 + 4454361081 = 44872^2 + 66741^2 .

It is a cyclic number.

It is not a de Polignac number, because 6467857465 - 2³ = 6467857457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646785742 + ... + 646785751.

It is an arithmetic number, because the mean of its divisors is an integer number (1940357241).

Almost surely, 2^6467857465 is an apocalyptic number.

It is an amenable number.

6467857465 is a deficient number, since it is larger than the sum of its proper divisors (1293571499).

6467857465 is a wasteful number, since it uses less digits than its factorization.

6467857465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293571498.

The product of its digits is 33868800, while the sum is 58.

The square root of 6467857465 is about 80422.9908981256. The cubic root of 6467857465 is about 1863.1742791716.

The spelling of 6467857465 in words is "six billion, four hundred sixty-seven million, eight hundred fifty-seven thousand, four hundred sixty-five".