3991060000 has 120 divisors (see below), whose sum is σ = 9862642944. Its totient is φ = 1589280000.

The previous prime is 3991059997. The next prime is 3991060009. The reversal of 3991060000 is 601993.

It is a happy number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3991060009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8619769 + ... + 8620231.

Almost surely, 2^3991060000 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 3991060000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4931321472).

3991060000 is an abundant number, since it is smaller than the sum of its proper divisors (5871582944).

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

3991060000 is an equidigital number, since it uses as much as digits as its factorization.

3991060000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 3991060000 is about 63174.8367627491. The cubic root of 3991060000 is about 1586.2175560416.

Adding to 3991060000 its reverse (601993), we get a palindrome (3991661993).

The spelling of 3991060000 in words is "three billion, nine hundred ninety-one million, sixty thousand".