45020780449 has 4 divisors (see below), whose sum is σ = 45692732464. Its totient is φ = 44348828436.

The previous prime is 45020780443. The next prime is 45020780477. The reversal of 45020780449 is 94408702054.

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 45020780449 - 2³¹ = 42873296801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45020780443) 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, 335975907 + ... + 335976040.

It is an arithmetic number, because the mean of its divisors is an integer number (11423183116).

Almost surely, 2^45020780449 is an apocalyptic number.

It is an amenable number.

45020780449 is a deficient number, since it is larger than the sum of its proper divisors (671952015).

45020780449 is an equidigital number, since it uses as much as digits as its factorization.

45020780449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671952014.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 45020780449 in words is "forty-five billion, twenty million, seven hundred eighty thousand, four hundred forty-nine".