1298412391441 has 27 divisors (see below), whose sum is σ = 1448557654089. Its totient is φ = 1162952267400.

The previous prime is 1298412391403. The next prime is 1298412391481. The reversal of 1298412391441 is 1441932148921.

The square root of 1298412391441 is 1139479.

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

It is a de Polignac number, because none of the positive numbers 2^k-1298412391441 is a prime.

It is a super-2 number, since 2×1298412391441² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1298412391481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 889932370 + ... + 889933828.

Almost surely, 2^{1298412391441} is an apocalyptic number.

1298412391441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1298412391441 is the 1139479-th square number.

1298412391441 is the 569740-th centered octagonal number.

It is an amenable number.

1298412391441 is a deficient number, since it is larger than the sum of its proper divisors (150145262648).

1298412391441 is an frugal number, since it uses more digits than its factorization.

1298412391441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082 (or 1541 counting only the distinct ones).

The product of its digits is 497664, while the sum is 49.

Multiplying 1298412391441 by its sum of digits (49), we get a square (63622207180609 = 7976353²).

The spelling of 1298412391441 in words is "one trillion, two hundred ninety-eight billion, four hundred twelve million, three hundred ninety-one thousand, four hundred forty-one".