1161968973 has 8 divisors (see below), whose sum is σ = 1690136736. Its totient is φ = 704223600.

The previous prime is 1161968963. The next prime is 1161968981. The reversal of 1161968973 is 3798691611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1161968973 - 2⁴ = 1161968957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161968933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17605558 + ... + 17605623.

It is an arithmetic number, because the mean of its divisors is an integer number (211267092).

Almost surely, 2^1161968973 is an apocalyptic number.

It is an amenable number.

1161968973 is a deficient number, since it is larger than the sum of its proper divisors (528167763).

1161968973 is a wasteful number, since it uses less digits than its factorization.

1161968973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35211195.

The product of its digits is 489888, while the sum is 51.

The square root of 1161968973 is about 34087.6659951954. The cubic root of 1161968973 is about 1051.3117311357.

The spelling of 1161968973 in words is "one billion, one hundred sixty-one million, nine hundred sixty-eight thousand, nine hundred seventy-three".