11658427549 has 2 divisors, whose sum is σ = 11658427550. Its totient is φ = 11658427548.

The previous prime is 11658427541. The next prime is 11658427621. The reversal of 11658427549 is 94572485611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11560120324 + 98307225 = 107518^2 + 9915^2 .

It is an emirp because it is prime and its reverse (94572485611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11658427549 - 2³ = 11658427541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11658427496 and 11658427505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11658427541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5829213774 + 5829213775.

It is an arithmetic number, because the mean of its divisors is an integer number (5829213775).

Almost surely, 2^11658427549 is an apocalyptic number.

It is an amenable number.

11658427549 is a deficient number, since it is larger than the sum of its proper divisors (1).

11658427549 is an equidigital number, since it uses as much as digits as its factorization.

11658427549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 52.

The spelling of 11658427549 in words is "eleven billion, six hundred fifty-eight million, four hundred twenty-seven thousand, five hundred forty-nine".