451061523601 has 4 divisors (see below), whose sum is σ = 485758563892. Its totient is φ = 416364483312.

The previous prime is 451061523551. The next prime is 451061523607. The reversal of 451061523601 is 106325160154.

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 141508382976 + 309553140625 = 376176^2 + 556375^2 .

It is a cyclic number.

It is not a de Polignac number, because 451061523601 - 2²³ = 451053134993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451061523607) 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, 17348520126 + ... + 17348520151.

It is an arithmetic number, because the mean of its divisors is an integer number (121439640973).

Almost surely, 2^451061523601 is an apocalyptic number.

It is an amenable number.

451061523601 is a deficient number, since it is larger than the sum of its proper divisors (34697040291).

451061523601 is a wasteful number, since it uses less digits than its factorization.

451061523601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34697040290.

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 451061523601 its reverse (106325160154), we get a palindrome (557386683755).

The spelling of 451061523601 in words is "four hundred fifty-one billion, sixty-one million, five hundred twenty-three thousand, six hundred one".