4005023465251 has 4 divisors (see below), whose sum is σ = 4240613080872. Its totient is φ = 3769433849632.

The previous prime is 4005023465249. The next prime is 4005023465369. The reversal of 4005023465251 is 1525643205004.

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 4005023465251 - 2¹ = 4005023465249 is a prime.

It is a super-2 number, since 2×4005023465251² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4005023465251.

It is not an unprimeable number, because it can be changed into a prime (4005023475251) 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, 117794807785 + ... + 117794807818.

It is an arithmetic number, because the mean of its divisors is an integer number (1060153270218).

Almost surely, 2^{4005023465251} is an apocalyptic number.

4005023465251 is a deficient number, since it is larger than the sum of its proper divisors (235589615621).

4005023465251 is a wasteful number, since it uses less digits than its factorization.

4005023465251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235589615620.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 4005023465251 in words is "four trillion, five billion, twenty-three million, four hundred sixty-five thousand, two hundred fifty-one".