6509956392 has 96 divisors (see below), whose sum is σ = 18379932480. Its totient is φ = 2158617600.

The previous prime is 6509956367. The next prime is 6509956399. The reversal of 6509956392 is 2936599056.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6509956399) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 366517 + ... + 383867.

It is an arithmetic number, because the mean of its divisors is an integer number (191457630).

Almost surely, 2^6509956392 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 6509956392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9189966240).

6509956392 is an abundant number, since it is smaller than the sum of its proper divisors (11869976088).

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

6509956392 is a wasteful number, since it uses less digits than its factorization.

6509956392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17565 (or 17549 counting only the distinct ones).

The product of its (nonzero) digits is 3936600, while the sum is 54.

The square root of 6509956392 is about 80684.3007777845. The cubic root of 6509956392 is about 1867.2079729175.

The spelling of 6509956392 in words is "six billion, five hundred nine million, nine hundred fifty-six thousand, three hundred ninety-two".