6521374000 has 80 divisors (see below), whose sum is σ = 16454393280. Its totient is φ = 2495116800.

The previous prime is 6521373973. The next prime is 6521374021. The reversal of 6521374000 is 4731256.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6521374000.

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, 24885 + ... + 116884.

It is an arithmetic number, because the mean of its divisors is an integer number (205679916).

Almost surely, 2^6521374000 is an apocalyptic number.

It is an amenable number.

6521374000 is an abundant number, since it is smaller than the sum of its proper divisors (9933019280).

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

6521374000 is a wasteful number, since it uses less digits than its factorization.

6521374000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141815 (or 141799 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 6521374000 is about 80755.0246114754. The cubic root of 6521374000 is about 1868.2989478249.

The spelling of 6521374000 in words is "six billion, five hundred twenty-one million, three hundred seventy-four thousand".