1177380864 has 144 divisors (see below), whose sum is σ = 3710266560. Its totient is φ = 356720640.

The previous prime is 1177380863. The next prime is 1177380901. The reversal of 1177380864 is 4680837711.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (1177380863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199849 + ... + 205655.

It is an arithmetic number, because the mean of its divisors is an integer number (25765740).

Almost surely, 2^1177380864 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 1177380864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1855133280).

1177380864 is an abundant number, since it is smaller than the sum of its proper divisors (2532885696).

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

1177380864 is a wasteful number, since it uses less digits than its factorization.

1177380864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5846 (or 5823 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 1177380864 is about 34312.9838982272. The cubic root of 1177380864 is about 1055.9393904608.

The spelling of 1177380864 in words is "one billion, one hundred seventy-seven million, three hundred eighty thousand, eight hundred sixty-four".