4002064215251 has 4 divisors (see below), whose sum is σ = 4140066429600. Its totient is φ = 3864062000904.

The previous prime is 4002064215209. The next prime is 4002064215299. The reversal of 4002064215251 is 1525124602004.

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 4002064215251 - 2³⁴ = 3984884346067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4002064115251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69001107131 + ... + 69001107188.

It is an arithmetic number, because the mean of its divisors is an integer number (1035016607400).

Almost surely, 2^{4002064215251} is an apocalyptic number.

4002064215251 is a deficient number, since it is larger than the sum of its proper divisors (138002214349).

4002064215251 is a wasteful number, since it uses less digits than its factorization.

4002064215251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138002214348.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 4002064215251 its reverse (1525124602004), we get a palindrome (5527188817255).

The spelling of 4002064215251 in words is "four trillion, two billion, sixty-four million, two hundred fifteen thousand, two hundred fifty-one".