45012253449 has 8 divisors (see below), whose sum is σ = 63175092640. Its totient is φ = 28428791616.

The previous prime is 45012253439. The next prime is 45012253469. The reversal of 45012253449 is 94435221054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45012253449 - 2²⁷ = 44878035721 is a prime.

It is a super-2 number, since 2×45012253449² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45012253409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394844272 + ... + 394844385.

It is an arithmetic number, because the mean of its divisors is an integer number (7896886580).

Almost surely, 2^45012253449 is an apocalyptic number.

It is an amenable number.

45012253449 is a deficient number, since it is larger than the sum of its proper divisors (18162839191).

45012253449 is a wasteful number, since it uses less digits than its factorization.

45012253449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789688679.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 45012253449 in words is "forty-five billion, twelve million, two hundred fifty-three thousand, four hundred forty-nine".