1171964612 has 48 divisors (see below), whose sum is σ = 2657101440. Its totient is φ = 439229952.

The previous prime is 1171964611. The next prime is 1171964639. The reversal of 1171964612 is 2164691711.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (1171964611) 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, 77813 + ... + 91644.

It is an arithmetic number, because the mean of its divisors is an integer number (55356280).

Almost surely, 2^1171964612 is an apocalyptic number.

It is an amenable number.

1171964612 is an abundant number, since it is smaller than the sum of its proper divisors (1485136828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1171964612 is a wasteful number, since it uses less digits than its factorization.

1171964612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169500 (or 169498 counting only the distinct ones).

The product of its digits is 18144, while the sum is 38.

The square root of 1171964612 is about 34233.9686860872. The cubic root of 1171964612 is about 1054.3177044313.

The spelling of 1171964612 in words is "one billion, one hundred seventy-one million, nine hundred sixty-four thousand, six hundred twelve".