7649369784 has 192 divisors, whose sum is σ = 25346979840. Its totient is φ = 2114916480.

The previous prime is 7649369747. The next prime is 7649369789. The reversal of 7649369784 is 4879639467.

7649369784 is a `hidden beast` number, since 7 + 6 + 493 + 69 + 7 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7649369789) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 412782 + ... + 430914.

It is an arithmetic number, because the mean of its divisors is an integer number (132015520).

Almost surely, 2^7649369784 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 7649369784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12673489920).

7649369784 is an abundant number, since it is smaller than the sum of its proper divisors (17697610056).

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

7649369784 is a wasteful number, since it uses less digits than its factorization.

7649369784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18192 (or 18176 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 63.

The square root of 7649369784 is about 87460.6756433999. The cubic root of 7649369784 is about 1970.3432268919.

The spelling of 7649369784 in words is "seven billion, six hundred forty-nine million, three hundred sixty-nine thousand, seven hundred eighty-four".