6521419480 has 16 divisors (see below), whose sum is σ = 14673193920. Its totient is φ = 2608567776.

The previous prime is 6521419433. The next prime is 6521419481. The reversal of 6521419480 is 849141256.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 163035487 = 6521419480 / (6 + 5 + 2 + 1 + 4 + 1 + 9 + 4 + 8 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6521419481) 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, 81517704 + ... + 81517783.

It is an arithmetic number, because the mean of its divisors is an integer number (917074620).

Almost surely, 2^6521419480 is an apocalyptic number.

It is an amenable number.

6521419480 is an abundant number, since it is smaller than the sum of its proper divisors (8151774440).

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

6521419480 is a wasteful number, since it uses less digits than its factorization.

6521419480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163035498 (or 163035494 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 6521419480 is about 80755.3062033697. The cubic root of 6521419480 is about 1868.3032909811.

The spelling of 6521419480 in words is "six billion, five hundred twenty-one million, four hundred nineteen thousand, four hundred eighty".