13446489733 has 2 divisors, whose sum is σ = 13446489734. Its totient is φ = 13446489732.

The previous prime is 13446489671. The next prime is 13446489737. The reversal of 13446489733 is 33798464431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13206146724 + 240343009 = 114918^2 + 15503^2 .

It is a cyclic number.

It is not a de Polignac number, because 13446489733 - 2¹⁷ = 13446358661 is a prime.

It is a super-2 number, since 2×13446489733² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13446489737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6723244866 + 6723244867.

It is an arithmetic number, because the mean of its divisors is an integer number (6723244867).

Almost surely, 2^13446489733 is an apocalyptic number.

It is an amenable number.

13446489733 is a deficient number, since it is larger than the sum of its proper divisors (1).

13446489733 is an equidigital number, since it uses as much as digits as its factorization.

13446489733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 52.

Subtracting from 13446489733 its sum of digits (52), we obtain a square (13446489681 = 115959²).

The spelling of 13446489733 in words is "thirteen billion, four hundred forty-six million, four hundred eighty-nine thousand, seven hundred thirty-three".