7649544220 has 24 divisors (see below), whose sum is σ = 16405833024. Its totient is φ = 2994714816.

The previous prime is 7649544181. The next prime is 7649544233. The reversal of 7649544220 is 224459467.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4067967 + ... + 4069846.

It is an arithmetic number, because the mean of its divisors is an integer number (683576376).

Almost surely, 2^7649544220 is an apocalyptic number.

It is an amenable number.

7649544220 is an abundant number, since it is smaller than the sum of its proper divisors (8756288804).

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

7649544220 is a wasteful number, since it uses less digits than its factorization.

7649544220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8137869 (or 8137867 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The square root of 7649544220 is about 87461.6728630318. The cubic root of 7649544220 is about 1970.3582039940.

The spelling of 7649544220 in words is "seven billion, six hundred forty-nine million, five hundred forty-four thousand, two hundred twenty".