8423778250144 has 24 divisors (see below), whose sum is σ = 16584403453380. Its totient is φ = 4211866262016.

The previous prime is 8423778250127. The next prime is 8423778250211. The reversal of 8423778250144 is 4410528773248.

It can be written as a sum of positive squares in 2 ways, for example, as 5712157360144 + 2711620890000 = 2390012^2 + 1646700^2 .

It is a super-2 number, since 2×8423778250144² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6346252 + ... + 7557940.

Almost surely, 2^{8423778250144} is an apocalyptic number.

It is an amenable number.

8423778250144 is a deficient number, since it is larger than the sum of its proper divisors (8160625203236).

8423778250144 is a wasteful number, since it uses less digits than its factorization.

8423778250144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428952 (or 1428944 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 55.

The spelling of 8423778250144 in words is "eight trillion, four hundred twenty-three billion, seven hundred seventy-eight million, two hundred fifty thousand, one hundred forty-four".