8135389248 has 448 divisors, whose sum is σ = 27036979200. Its totient is φ = 2152550400.

The previous prime is 8135389181. The next prime is 8135389313. The reversal of 8135389248 is 8429835318.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8135389248.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 62102143 + ... + 62102273.

It is an arithmetic number, because the mean of its divisors is an integer number (60350400).

Almost surely, 2^8135389248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8135389248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13518489600).

8135389248 is an abundant number, since it is smaller than the sum of its proper divisors (18901589952).

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

8135389248 is a wasteful number, since it uses less digits than its factorization.

8135389248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 207 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 51.

The square root of 8135389248 is about 90196.3926551389. The cubic root of 8135389248 is about 2011.2193823767.

The spelling of 8135389248 in words is "eight billion, one hundred thirty-five million, three hundred eighty-nine thousand, two hundred forty-eight".