4377991632 has 160 divisors (see below), whose sum is σ = 13415808000. Its totient is φ = 1229380992.

The previous prime is 4377991567. The next prime is 4377991633. The reversal of 4377991632 is 2361997734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4377991633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 969123 + ... + 973629.

It is an arithmetic number, because the mean of its divisors is an integer number (83848800).

Almost surely, 2^4377991632 is an apocalyptic number.

4377991632 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4377991632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6707904000).

4377991632 is an abundant number, since it is smaller than the sum of its proper divisors (9037816368).

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

4377991632 is a wasteful number, since it uses less digits than its factorization.

4377991632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4598 (or 4578 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 51.

The square root of 4377991632 is about 66166.3935242053. The cubic root of 4377991632 is about 1635.9058635504.

The spelling of 4377991632 in words is "four billion, three hundred seventy-seven million, nine hundred ninety-one thousand, six hundred thirty-two".