11137730919 has 24 divisors (see below), whose sum is σ = 17290119168. Its totient is φ = 6358791600.

The previous prime is 11137730917. The next prime is 11137730921. The reversal of 11137730919 is 91903773111.

It is an interprime number because it is at equal distance from previous prime (11137730917) and next prime (11137730921).

It is not a de Polignac number, because 11137730919 - 2¹ = 11137730917 is a prime.

It is a super-2 number, since 2×11137730919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11137730917) 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 in 23 ways as a sum of consecutive naturals, for example, 136284 + ... + 202110.

It is an arithmetic number, because the mean of its divisors is an integer number (720421632).

Almost surely, 2^11137730919 is an apocalyptic number.

11137730919 is a deficient number, since it is larger than the sum of its proper divisors (6152388249).

11137730919 is a wasteful number, since it uses less digits than its factorization.

11137730919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66995 (or 66988 counting only the distinct ones).

The product of its (nonzero) digits is 35721, while the sum is 42.

The spelling of 11137730919 in words is "eleven billion, one hundred thirty-seven million, seven hundred thirty thousand, nine hundred nineteen".