7745273484 has 96 divisors (see below), whose sum is σ = 20377163520. Its totient is φ = 2273150208.

The previous prime is 7745273479. The next prime is 7745273537. The reversal of 7745273484 is 4843725477.

It is a super-2 number, since 2×7745273484² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365179 + ... + 385805.

It is an arithmetic number, because the mean of its divisors is an integer number (212262120).

Almost surely, 2^7745273484 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 7745273484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10188581760).

7745273484 is an abundant number, since it is smaller than the sum of its proper divisors (12631890036).

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

7745273484 is a wasteful number, since it uses less digits than its factorization.

7745273484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20759 (or 20757 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 51.

The square root of 7745273484 is about 88007.2354070959. The cubic root of 7745273484 is about 1978.5434211352.

The spelling of 7745273484 in words is "seven billion, seven hundred forty-five million, two hundred seventy-three thousand, four hundred eighty-four".