6573074640 has 80 divisors (see below), whose sum is σ = 22228952256. Its totient is φ = 1593472000.

The previous prime is 6573074609. The next prime is 6573074653. The reversal of 6573074640 is 464703756.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×6573074640² = 86410620446022259200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6573074592 and 6573074601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1242261 + ... + 1247540.

Almost surely, 2^6573074640 is an apocalyptic number.

6573074640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6573074640 is an abundant number, since it is smaller than the sum of its proper divisors (15655877616).

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

6573074640 is a wasteful number, since it uses less digits than its factorization.

6573074640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489828 (or 2489822 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 42.

The square root of 6573074640 is about 81074.5005535033. The cubic root of 6573074640 is about 1873.2231714903.

The spelling of 6573074640 in words is "six billion, five hundred seventy-three million, seventy-four thousand, six hundred forty".