144555912478 has 4 divisors (see below), whose sum is σ = 216833868720. Its totient is φ = 72277956238.

The previous prime is 144555912463. The next prime is 144555912493. The reversal of 144555912478 is 874219555441.

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

It is an interprime number because it is at equal distance from previous prime (144555912463) and next prime (144555912493).

It is a super-2 number, since 2×144555912478² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36138978118 + ... + 36138978121.

It is an arithmetic number, because the mean of its divisors is an integer number (54208467180).

Almost surely, 2^144555912478 is an apocalyptic number.

144555912478 is a deficient number, since it is larger than the sum of its proper divisors (72277956242).

144555912478 is an equidigital number, since it uses as much as digits as its factorization.

144555912478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72277956241.

The product of its digits is 8064000, while the sum is 55.

The spelling of 144555912478 in words is "one hundred forty-four billion, five hundred fifty-five million, nine hundred twelve thousand, four hundred seventy-eight".