1089597225749 has 2 divisors, whose sum is σ = 1089597225750. Its totient is φ = 1089597225748.

The previous prime is 1089597225593. The next prime is 1089597225757. The reversal of 1089597225749 is 9475227959801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 914714349649 + 174882876100 = 956407^2 + 418190^2 .

It is an emirp because it is prime and its reverse (9475227959801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1089597225749 is a prime.

It is a super-2 number, since 2×1089597225749² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1089597225949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544798612874 + 544798612875.

It is an arithmetic number, because the mean of its divisors is an integer number (544798612875).

Almost surely, 2^{1089597225749} is an apocalyptic number.

It is an amenable number.

1089597225749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089597225749 is an equidigital number, since it uses as much as digits as its factorization.

1089597225749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 114307200, while the sum is 68.

The spelling of 1089597225749 in words is "one trillion, eighty-nine billion, five hundred ninety-seven million, two hundred twenty-five thousand, seven hundred forty-nine".