7647045255 has 12 divisors (see below), whose sum is σ = 13254878520. Its totient is φ = 4078424112.

The previous prime is 7647045253. The next prime is 7647045299. The reversal of 7647045255 is 5525407467.

It is not a de Polignac number, because 7647045255 - 2¹ = 7647045253 is a prime.

It is a super-2 number, since 2×7647045255² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 169934339 = 7647045255 / (7 + 6 + 4 + 7 + 0 + 4 + 5 + 2 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 7647045255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7647045251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84967125 + ... + 84967214.

It is an arithmetic number, because the mean of its divisors is an integer number (1104573210).

Almost surely, 2^7647045255 is an apocalyptic number.

7647045255 is a deficient number, since it is larger than the sum of its proper divisors (5607833265).

7647045255 is a wasteful number, since it uses less digits than its factorization.

7647045255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169934350 (or 169934347 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 45.

The square root of 7647045255 is about 87447.3856384512. The cubic root of 7647045255 is about 1970.1436207316.

The spelling of 7647045255 in words is "seven billion, six hundred forty-seven million, forty-five thousand, two hundred fifty-five".