8419135521 has 8 divisors (see below), whose sum is σ = 11464354944. Its totient is φ = 5493336560.

The previous prime is 8419135499. The next prime is 8419135547. The reversal of 8419135521 is 1255319148.

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

It is a cyclic number.

It is not a de Polignac number, because 8419135521 - 2⁶ = 8419135457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8419135521.

It is not an unprimeable number, because it can be changed into a prime (8419135561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29854950 + ... + 29855231.

It is an arithmetic number, because the mean of its divisors is an integer number (1433044368).

Almost surely, 2^8419135521 is an apocalyptic number.

It is an amenable number.

8419135521 is a deficient number, since it is larger than the sum of its proper divisors (3045219423).

8419135521 is a wasteful number, since it uses less digits than its factorization.

8419135521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59710231.

The product of its digits is 43200, while the sum is 39.

The square root of 8419135521 is about 91755.8473395565. The cubic root of 8419135521 is about 2034.3351361506.

The spelling of 8419135521 in words is "eight billion, four hundred nineteen million, one hundred thirty-five thousand, five hundred twenty-one".