45451321033 has 4 divisors (see below), whose sum is σ = 45723484800. Its totient is φ = 45179157268.

The previous prime is 45451321031. The next prime is 45451321037. The reversal of 45451321033 is 33012315454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45451321033 - 2¹ = 45451321031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45451320986 and 45451321004.

It is not an unprimeable number, because it can be changed into a prime (45451321031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136081633 + ... + 136081966.

It is an arithmetic number, because the mean of its divisors is an integer number (11430871200).

Almost surely, 2^45451321033 is an apocalyptic number.

It is an amenable number.

45451321033 is a deficient number, since it is larger than the sum of its proper divisors (272163767).

45451321033 is a wasteful number, since it uses less digits than its factorization.

45451321033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272163766.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 45451321033 its reverse (33012315454), we get a palindrome (78463636487).

The spelling of 45451321033 in words is "forty-five billion, four hundred fifty-one million, three hundred twenty-one thousand, thirty-three".