11139400049 has 2 divisors, whose sum is σ = 11139400050. Its totient is φ = 11139400048.

The previous prime is 11139399961. The next prime is 11139400081. The reversal of 11139400049 is 94000493111.

It is an a-pointer prime, because the next prime (11139400081) can be obtained adding 11139400049 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5721409600 + 5417990449 = 75640^2 + 73607^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11139400049 is a prime.

It is a super-2 number, since 2×11139400049² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11139399988 and 11139400024.

It is not a weakly prime, because it can be changed into another prime (11139400099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5569700024 + 5569700025.

It is an arithmetic number, because the mean of its divisors is an integer number (5569700025).

Almost surely, 2^11139400049 is an apocalyptic number.

It is an amenable number.

11139400049 is a deficient number, since it is larger than the sum of its proper divisors (1).

11139400049 is an equidigital number, since it uses as much as digits as its factorization.

11139400049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 32.

The spelling of 11139400049 in words is "eleven billion, one hundred thirty-nine million, four hundred thousand, forty-nine".