4145578697 has 16 divisors (see below), whose sum is σ = 4498303488. Its totient is φ = 3797798400.

The previous prime is 4145578687. The next prime is 4145578699. The reversal of 4145578697 is 7968755414.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4145578697 - 2²⁰ = 4144530121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4145578699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1021322 + ... + 1025372.

It is an arithmetic number, because the mean of its divisors is an integer number (281143968).

Almost surely, 2^4145578697 is an apocalyptic number.

It is an amenable number.

4145578697 is a deficient number, since it is larger than the sum of its proper divisors (352724791).

4145578697 is a wasteful number, since it uses less digits than its factorization.

4145578697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4640.

The product of its digits is 8467200, while the sum is 56.

The square root of 4145578697 is about 64386.1685224397. The cubic root of 4145578697 is about 1606.4296868491.

The spelling of 4145578697 in words is "four billion, one hundred forty-five million, five hundred seventy-eight thousand, six hundred ninety-seven".