6457909494 has 8 divisors (see below), whose sum is σ = 12915819000. Its totient is φ = 2152636496.

The previous prime is 6457909483. The next prime is 6457909499. The reversal of 6457909494 is 4949097546.

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

6457909494 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6457909499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538159119 + ... + 538159130.

It is an arithmetic number, because the mean of its divisors is an integer number (1614477375).

Almost surely, 2^6457909494 is an apocalyptic number.

6457909494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6457909494 is a wasteful number, since it uses less digits than its factorization.

6457909494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076318254.

The product of its (nonzero) digits is 9797760, while the sum is 57.

The square root of 6457909494 is about 80361.1192928521. The cubic root of 6457909494 is about 1862.2185626669.

The spelling of 6457909494 in words is "six billion, four hundred fifty-seven million, nine hundred nine thousand, four hundred ninety-four".