404252450455251 has 16 divisors (see below), whose sum is σ = 552104868317184. Its totient is φ = 262984863249024.

The previous prime is 404252450455129. The next prime is 404252450455267. The reversal of 404252450455251 is 152554054252404.

It is not a de Polignac number, because 404252450455251 - 2¹⁰ = 404252450454227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404252450455251.

It is not an unprimeable number, because it can be changed into a prime (404252410455251) 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, 4253719035 + ... + 4253814068.

It is an arithmetic number, because the mean of its divisors is an integer number (34506554269824).

Almost surely, 2^{404252450455251} is an apocalyptic number.

404252450455251 is a deficient number, since it is larger than the sum of its proper divisors (147852417861933).

404252450455251 is a wasteful number, since it uses less digits than its factorization.

404252450455251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8507533490.

The product of its (nonzero) digits is 6400000, while the sum is 48.

The spelling of 404252450455251 in words is "four hundred four trillion, two hundred fifty-two billion, four hundred fifty million, four hundred fifty-five thousand, two hundred fifty-one".