6442857793 has 12 divisors (see below), whose sum is σ = 6628670464. Its totient is φ = 6262077600.

The previous prime is 6442857787. The next prime is 6442857809. The reversal of 6442857793 is 3977582446.

It is not a de Polignac number, because 6442857793 - 2¹⁷ = 6442726721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6442857593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 448480 + ... + 462622.

Almost surely, 2^6442857793 is an apocalyptic number.

It is an amenable number.

6442857793 is a deficient number, since it is larger than the sum of its proper divisors (185812671).

6442857793 is a wasteful number, since it uses less digits than its factorization.

6442857793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14496 (or 14455 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 55.

The square root of 6442857793 is about 80267.4142663136. The cubic root of 6442857793 is about 1860.7706554251.

It can be divided in two parts, 64428 and 57793, that added together give a palindrome (122221).

The spelling of 6442857793 in words is "six billion, four hundred forty-two million, eight hundred fifty-seven thousand, seven hundred ninety-three".