451090409401 has 4 divisors (see below), whose sum is σ = 451092004132. Its totient is φ = 451088814672.

The previous prime is 451090409369. The next prime is 451090409417. The reversal of 451090409401 is 104904090154.

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

It can be written as a sum of positive squares in 2 ways, for example, as 231856695225 + 219233714176 = 481515^2 + 468224^2 .

It is a cyclic number.

It is not a de Polignac number, because 451090409401 - 2⁵ = 451090409369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451090449401) 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, 245970 + ... + 981163.

It is an arithmetic number, because the mean of its divisors is an integer number (112773001033).

Almost surely, 2^451090409401 is an apocalyptic number.

It is an amenable number.

451090409401 is a deficient number, since it is larger than the sum of its proper divisors (1594731).

451090409401 is a wasteful number, since it uses less digits than its factorization.

451090409401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594730.

The product of its (nonzero) digits is 25920, while the sum is 37.

Adding to 451090409401 its reverse (104904090154), we get a palindrome (555994499555).

The spelling of 451090409401 in words is "four hundred fifty-one billion, ninety million, four hundred nine thousand, four hundred one".