11137968428 has 6 divisors (see below), whose sum is σ = 19491444756. Its totient is φ = 5568984212.

The previous prime is 11137968383. The next prime is 11137968437. The reversal of 11137968428 is 82486973111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392246050 + ... + 1392246057.

It is an arithmetic number, because the mean of its divisors is an integer number (3248574126).

Almost surely, 2^11137968428 is an apocalyptic number.

It is an amenable number.

11137968428 is a deficient number, since it is larger than the sum of its proper divisors (8353476328).

11137968428 is a wasteful number, since it uses less digits than its factorization.

11137968428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784492111 (or 2784492109 counting only the distinct ones).

The product of its digits is 580608, while the sum is 50.

The spelling of 11137968428 in words is "eleven billion, one hundred thirty-seven million, nine hundred sixty-eight thousand, four hundred twenty-eight".