144749686047 has 16 divisors (see below), whose sum is σ = 194807760000. Its totient is φ = 95599121184.

The previous prime is 144749686009. The next prime is 144749686069. The reversal of 144749686047 is 740686947441.

It is not a de Polignac number, because 144749686047 - 2²⁸ = 144481250591 is a prime.

It is a super-2 number, since 2×144749686047² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144749686547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257797 + ... + 596622.

It is an arithmetic number, because the mean of its divisors is an integer number (12175485000).

Almost surely, 2^144749686047 is an apocalyptic number.

144749686047 is a deficient number, since it is larger than the sum of its proper divisors (50058073953).

144749686047 is a wasteful number, since it uses less digits than its factorization.

144749686047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854950.

The product of its (nonzero) digits is 32514048, while the sum is 60.

The spelling of 144749686047 in words is "one hundred forty-four billion, seven hundred forty-nine million, six hundred eighty-six thousand, forty-seven".