144474780649 has 8 divisors (see below), whose sum is σ = 146092988160. Its totient is φ = 142865538816.

The previous prime is 144474780613. The next prime is 144474780683. The reversal of 144474780649 is 946087474441.

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

It is a cyclic number.

It is not a de Polignac number, because 144474780649 - 2¹¹ = 144474778601 is a prime.

It is a super-2 number, since 2×144474780649² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144474780593 and 144474780602.

It is not an unprimeable number, because it can be changed into a prime (144474780689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2209009 + ... + 2273470.

It is an arithmetic number, because the mean of its divisors is an integer number (18261623520).

Almost surely, 2^144474780649 is an apocalyptic number.

It is an amenable number.

144474780649 is a deficient number, since it is larger than the sum of its proper divisors (1618207511).

144474780649 is a wasteful number, since it uses less digits than its factorization.

144474780649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4482839.

The product of its (nonzero) digits is 21676032, while the sum is 58.

The spelling of 144474780649 in words is "one hundred forty-four billion, four hundred seventy-four million, seven hundred eighty thousand, six hundred forty-nine".