4145551647 has 4 divisors (see below), whose sum is σ = 5527402200. Its totient is φ = 2763701096.

The previous prime is 4145551639. The next prime is 4145551661. The reversal of 4145551647 is 7461555414.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4145551647 - 2³ = 4145551639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4145551599 and 4145551608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4145551687) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 690925272 + ... + 690925277.

It is an arithmetic number, because the mean of its divisors is an integer number (1381850550).

Almost surely, 2^4145551647 is an apocalyptic number.

4145551647 is a deficient number, since it is larger than the sum of its proper divisors (1381850553).

4145551647 is a wasteful number, since it uses less digits than its factorization.

4145551647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381850552.

The product of its digits is 336000, while the sum is 42.

The square root of 4145551647 is about 64385.9584614534. The cubic root of 4145551647 is about 1606.4261928441.

The spelling of 4145551647 in words is "four billion, one hundred forty-five million, five hundred fifty-one thousand, six hundred forty-seven".