7475265720 has 192 divisors, whose sum is σ = 26371537920. Its totient is φ = 1825431552.

The previous prime is 7475265713. The next prime is 7475265737. The reversal of 7475265720 is 275625747.

7475265720 is a `hidden beast` number, since 7 + 4 + 75 + 2 + 6 + 572 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 47 ways as a sum of consecutive naturals, for example, 588072 + ... + 600648.

It is an arithmetic number, because the mean of its divisors is an integer number (137351760).

Almost surely, 2^7475265720 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 7475265720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13185768960).

7475265720 is an abundant number, since it is smaller than the sum of its proper divisors (18896272200).

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

7475265720 is a wasteful number, since it uses less digits than its factorization.

7475265720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12734 (or 12727 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 45.

The square root of 7475265720 is about 86459.6190137338. The cubic root of 7475265720 is about 1955.2796411449.

The spelling of 7475265720 in words is "seven billion, four hundred seventy-five million, two hundred sixty-five thousand, seven hundred twenty".