144420807447674 has 4 divisors (see below), whose sum is σ = 216631211171514. Its totient is φ = 72210403723836.

The previous prime is 144420807447533. The next prime is 144420807447677. The reversal of 144420807447674 is 476744708024441.

144420807447674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 81682606092649 + 62738201355025 = 9037843^2 + 7920745^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144420807447677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36105201861917 + ... + 36105201861920.

Almost surely, 2^{144420807447674} is an apocalyptic number.

144420807447674 is a deficient number, since it is larger than the sum of its proper divisors (72210403723840).

144420807447674 is an equidigital number, since it uses as much as digits as its factorization.

144420807447674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72210403723839.

The product of its (nonzero) digits is 134873088, while the sum is 62.

The spelling of 144420807447674 in words is "one hundred forty-four trillion, four hundred twenty billion, eight hundred seven million, four hundred forty-seven thousand, six hundred seventy-four".