11218429497 has 16 divisors (see below), whose sum is σ = 16337486592. Its totient is φ = 6790810320.

The previous prime is 11218429457. The next prime is 11218429501. The reversal of 11218429497 is 79492481211.

It is not a de Polignac number, because 11218429497 - 2⁶ = 11218429433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11218429427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178243 + ... + 232824.

It is an arithmetic number, because the mean of its divisors is an integer number (1021092912).

Almost surely, 2^11218429497 is an apocalyptic number.

It is an amenable number.

11218429497 is a deficient number, since it is larger than the sum of its proper divisors (5119057095).

11218429497 is a wasteful number, since it uses less digits than its factorization.

11218429497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411908.

The product of its digits is 290304, while the sum is 48.

The spelling of 11218429497 in words is "eleven billion, two hundred eighteen million, four hundred twenty-nine thousand, four hundred ninety-seven".