7289663388 has 48 divisors (see below), whose sum is σ = 19913236224. Its totient is φ = 2031960960.

The previous prime is 7289663383. The next prime is 7289663431. The reversal of 7289663388 is 8833669827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7289663383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1054870 + ... + 1061757.

It is an arithmetic number, because the mean of its divisors is an integer number (414859088).

Almost surely, 2^7289663388 is an apocalyptic number.

It is an amenable number.

7289663388 is an abundant number, since it is smaller than the sum of its proper divisors (12623572836).

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

7289663388 is a wasteful number, since it uses less digits than its factorization.

7289663388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116682 (or 2116680 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 60.

The square root of 7289663388 is about 85379.5255784430. The cubic root of 7289663388 is about 1938.9613765953.

The spelling of 7289663388 in words is "seven billion, two hundred eighty-nine million, six hundred sixty-three thousand, three hundred eighty-eight".