6521374260 has 48 divisors (see below), whose sum is σ = 20288721600. Its totient is φ = 1739032992.

The previous prime is 6521374243. The next prime is 6521374297. The reversal of 6521374260 is 624731256.

6521374260 is a `hidden beast` number, since 6 + 5 + 21 + 374 + 260 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6037770 + ... + 6038849.

It is an arithmetic number, because the mean of its divisors is an integer number (422681700).

Almost surely, 2^6521374260 is an apocalyptic number.

6521374260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6521374260 is an abundant number, since it is smaller than the sum of its proper divisors (13767347340).

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

6521374260 is a wasteful number, since it uses less digits than its factorization.

6521374260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12076637 (or 12076629 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 6521374260 is about 80755.0262212824. The cubic root of 6521374260 is about 1868.2989726539.

The spelling of 6521374260 in words is "six billion, five hundred twenty-one million, three hundred seventy-four thousand, two hundred sixty".