11023842649 has 2 divisors, whose sum is σ = 11023842650. Its totient is φ = 11023842648.

The previous prime is 11023842601. The next prime is 11023842659. The reversal of 11023842649 is 94624832011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10941160000 + 82682649 = 104600^2 + 9093^2 .

It is a cyclic number.

It is not a de Polignac number, because 11023842649 - 2²⁵ = 10990288217 is a prime.

It is a super-2 number, since 2×11023842649² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11023842659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511921324 + 5511921325.

It is an arithmetic number, because the mean of its divisors is an integer number (5511921325).

Almost surely, 2^11023842649 is an apocalyptic number.

It is an amenable number.

11023842649 is a deficient number, since it is larger than the sum of its proper divisors (1).

11023842649 is an equidigital number, since it uses as much as digits as its factorization.

11023842649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 11023842649 in words is "eleven billion, twenty-three million, eight hundred forty-two thousand, six hundred forty-nine".