10999999949 has 2 divisors, whose sum is σ = 10999999950. Its totient is φ = 10999999948.

The previous prime is 10999999937. The next prime is 10999999999. The reversal of 10999999949 is 94999999901.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9294888100 + 1705111849 = 96410^2 + 41293^2 .

It is an emirp because it is prime and its reverse (94999999901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10999999949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10999999949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10999999919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5499999974 + 5499999975.

It is an arithmetic number, because the mean of its divisors is an integer number (5499999975).

Almost surely, 2^10999999949 is an apocalyptic number.

It is an amenable number.

10999999949 is a deficient number, since it is larger than the sum of its proper divisors (1).

10999999949 is an equidigital number, since it uses as much as digits as its factorization.

10999999949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172186884, while the sum is 77.

The spelling of 10999999949 in words is "ten billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred forty-nine".