1791667968 has 72 divisors (see below), whose sum is σ = 4858530768. Its totient is φ = 585940992.

The previous prime is 1791667967. The next prime is 1791668009. The reversal of 1791667968 is 8697661971.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1791667967) 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, 18696 + ... + 62712.

It is an arithmetic number, because the mean of its divisors is an integer number (67479594).

Almost surely, 2^1791667968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1791667968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2429265384).

1791667968 is an abundant number, since it is smaller than the sum of its proper divisors (3066862800).

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

1791667968 is an equidigital number, since it uses as much as digits as its factorization.

1791667968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44089 (or 44075 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 60.

The square root of 1791667968 is about 42328.0990359832. The cubic root of 1791667968 is about 1214.5605659090.

The spelling of 1791667968 in words is "one billion, seven hundred ninety-one million, six hundred sixty-seven thousand, nine hundred sixty-eight".