7487281008 has 120 divisors (see below), whose sum is σ = 21955188528. Its totient is φ = 2469906432.

The previous prime is 7487281007. The next prime is 7487281019. The reversal of 7487281008 is 8001827847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7487281007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 367210 + ... + 387062.

Almost surely, 2^7487281008 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 7487281008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10977594264).

7487281008 is an abundant number, since it is smaller than the sum of its proper divisors (14467907520).

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

7487281008 is a wasteful number, since it uses less digits than its factorization.

7487281008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19973 (or 19955 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 45.

The square root of 7487281008 is about 86529.0760842851. The cubic root of 7487281008 is about 1956.3266796007.

The spelling of 7487281008 in words is "seven billion, four hundred eighty-seven million, two hundred eighty-one thousand, eight".