2987345536 has 128 divisors (see below), whose sum is σ = 7370732160. Its totient is φ = 1176698880.

The previous prime is 2987345527. The next prime is 2987345539. The reversal of 2987345536 is 6355437892.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2987345539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 652696 + ... + 657256.

It is an arithmetic number, because the mean of its divisors is an integer number (57583845).

Almost surely, 2^2987345536 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 2987345536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3685366080).

2987345536 is an abundant number, since it is smaller than the sum of its proper divisors (4383386624).

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

2987345536 is a wasteful number, since it uses less digits than its factorization.

2987345536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4642 (or 4630 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 52.

The square root of 2987345536 is about 54656.6147506411. The cubic root of 2987345536 is about 1440.2188350550.

The spelling of 2987345536 in words is "two billion, nine hundred eighty-seven million, three hundred forty-five thousand, five hundred thirty-six".