7485565851 has 12 divisors (see below), whose sum is σ = 11448512712. Its totient is φ = 4696825536.

The previous prime is 7485565819. The next prime is 7485565897. The reversal of 7485565851 is 1585655847.

7485565851 is a `hidden beast` number, since 7 + 4 + 8 + 5 + 56 + 585 + 1 = 666.

It is not a de Polignac number, because 7485565851 - 2⁵ = 7485565819 is a prime.

It is a super-2 number, since 2×7485565851² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7485565751) 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, 24462481 + ... + 24462786.

It is an arithmetic number, because the mean of its divisors is an integer number (954042726).

Almost surely, 2^7485565851 is an apocalyptic number.

7485565851 is a deficient number, since it is larger than the sum of its proper divisors (3962946861).

7485565851 is a wasteful number, since it uses less digits than its factorization.

7485565851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48925290 (or 48925287 counting only the distinct ones).

The product of its digits is 6720000, while the sum is 54.

The square root of 7485565851 is about 86519.1646457593. The cubic root of 7485565851 is about 1956.1772856422.

The spelling of 7485565851 in words is "seven billion, four hundred eighty-five million, five hundred sixty-five thousand, eight hundred fifty-one".