1244199700969 has 27 divisors (see below), whose sum is σ = 1282170715959. Its totient is φ = 1207349008800.

The previous prime is 1244199700967. The next prime is 1244199700973. The reversal of 1244199700969 is 9690079914421.

The square root of 1244199700969 is 1115437.

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

It can be written as a sum of positive squares in only one way, i.e., 238912731369 + 1005286969600 = 488787^2 + 1002640^2 .

It is not a de Polignac number, because 1244199700969 - 2¹ = 1244199700967 is a prime.

It is a super-3 number, since 3×1244199700969³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244199700967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8239733044 + ... + 8239733194.

Almost surely, 2^{1244199700969} is an apocalyptic number.

1244199700969 is the 1115437-th square number.

1244199700969 is the 557719-th centered octagonal number.

It is an amenable number.

1244199700969 is a deficient number, since it is larger than the sum of its proper divisors (37971014990).

1244199700969 is an frugal number, since it uses more digits than its factorization.

1244199700969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 61.

The spelling of 1244199700969 in words is "one trillion, two hundred forty-four billion, one hundred ninety-nine million, seven hundred thousand, nine hundred sixty-nine".