1349890944256 has 18 divisors (see below), whose sum is σ = 2694508877522. Its totient is φ = 674945472000.

The previous prime is 1349890944253. The next prime is 1349890944277. The reversal of 1349890944256 is 6524490989431.

It can be written as a sum of positive squares in only one way, i.e., 1238858041600 + 111032902656 = 1113040^2 + 333216^2 .

It is a super-2 number, since 2×1349890944256² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1349890944253) 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 as a sum of consecutive naturals, namely, 2636505495 + ... + 2636506006.

Almost surely, 2^{1349890944256} is an apocalyptic number.

1349890944256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1349890944256 is a deficient number, since it is larger than the sum of its proper divisors (1344617933266).

1349890944256 is an frugal number, since it uses more digits than its factorization.

1349890944256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5273011517 (or 5273011503 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 64.

The spelling of 1349890944256 in words is "one trillion, three hundred forty-nine billion, eight hundred ninety million, nine hundred forty-four thousand, two hundred fifty-six".