7745273481 has 8 divisors (see below), whose sum is σ = 11265852384. Its totient is φ = 4694105120.

The previous prime is 7745273479. The next prime is 7745273537. The reversal of 7745273481 is 1843725477.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7745273481 - 2¹ = 7745273479 is a prime.

It is a super-3 number, since 3×7745273481³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 7745273481.

It is not an unprimeable number, because it can be changed into a prime (7745273881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117352596 + ... + 117352661.

It is an arithmetic number, because the mean of its divisors is an integer number (1408231548).

Almost surely, 2^7745273481 is an apocalyptic number.

It is an amenable number.

7745273481 is a deficient number, since it is larger than the sum of its proper divisors (3520578903).

7745273481 is a wasteful number, since it uses less digits than its factorization.

7745273481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234705271.

The product of its digits is 1317120, while the sum is 48.

The square root of 7745273481 is about 88007.2353900519. The cubic root of 7745273481 is about 1978.5434208798.

The spelling of 7745273481 in words is "seven billion, seven hundred forty-five million, two hundred seventy-three thousand, four hundred eighty-one".