2987387648 has 72 divisors (see below), whose sum is σ = 6926952480. Its totient is φ = 1259274240.

The previous prime is 2987387629. The next prime is 2987387653. The reversal of 2987387648 is 8467837892.

It is a Cunningham number, because it is equal to 54657²-1.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95648 + ... + 122976.

Almost surely, 2^2987387648 is an apocalyptic number.

2987387648 is a gapful number since it is divisible by the number (28) 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 2987387648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3463476240).

2987387648 is an abundant number, since it is smaller than the sum of its proper divisors (3939564832).

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

2987387648 is an equidigital number, since it uses as much as digits as its factorization.

2987387648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27413 (or 27399 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 62.

The square root of 2987387648 is about 54656.9999908520. Note that the first 5 decimals coincide. The cubic root of 2987387648 is about 1440.2256025134.

The spelling of 2987387648 in words is "two billion, nine hundred eighty-seven million, three hundred eighty-seven thousand, six hundred forty-eight".