1107186397549 has 2 divisors, whose sum is σ = 1107186397550. Its totient is φ = 1107186397548.

The previous prime is 1107186397547. The next prime is 1107186397553. The reversal of 1107186397549 is 9457936817011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1098551341924 + 8635055625 = 1048118^2 + 92925^2 .

It is a cyclic number.

It is not a de Polignac number, because 1107186397549 - 2¹ = 1107186397547 is a prime.

Together with 1107186397547, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1107186397543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553593198774 + 553593198775.

It is an arithmetic number, because the mean of its divisors is an integer number (553593198775).

Almost surely, 2^{1107186397549} is an apocalyptic number.

It is an amenable number.

1107186397549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1107186397549 is an equidigital number, since it uses as much as digits as its factorization.

1107186397549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11430720, while the sum is 61.

The spelling of 1107186397549 in words is "one trillion, one hundred seven billion, one hundred eighty-six million, three hundred ninety-seven thousand, five hundred forty-nine".