7978284248 has 64 divisors (see below), whose sum is σ = 17301150720. Its totient is φ = 3414614400.

The previous prime is 7978284239. The next prime is 7978284257. The reversal of 7978284248 is 8424828797.

It is an interprime number because it is at equal distance from previous prime (7978284239) and next prime (7978284257).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 61415 + ... + 140457.

It is an arithmetic number, because the mean of its divisors is an integer number (270330480).

Almost surely, 2^7978284248 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 7978284248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8650575360).

7978284248 is an abundant number, since it is smaller than the sum of its proper divisors (9322866472).

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

7978284248 is a wasteful number, since it uses less digits than its factorization.

7978284248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79128 (or 79124 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 59.

The square root of 7978284248 is about 89321.2418632880. The cubic root of 7978284248 is about 1998.1887141169.

The spelling of 7978284248 in words is "seven billion, nine hundred seventy-eight million, two hundred eighty-four thousand, two hundred forty-eight".