1241851699456 has 135 divisors (see below), whose sum is σ = 2644752726273. Its totient is φ = 581975900160.

The previous prime is 1241851699423. The next prime is 1241851699463. The reversal of 1241851699456 is 6549961581421.

The square root of 1241851699456 is 1114384.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 6019277056 + 1235832422400 = 77584^2 + 1111680^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1241851699394 and 1241851699403.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 5152911496 + ... + 5152911736.

Almost surely, 2^{1241851699456} is an apocalyptic number.

1241851699456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1241851699456 is the 1114384-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1241851699456

1241851699456 is an abundant number, since it is smaller than the sum of its proper divisors (1402901026817).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1241851699456 is an frugal number, since it uses more digits than its factorization.

1241851699456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 260 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 61.

The spelling of 1241851699456 in words is "one trillion, two hundred forty-one billion, eight hundred fifty-one million, six hundred ninety-nine thousand, four hundred fifty-six".