7878383247 has 16 divisors (see below), whose sum is σ = 12019698432. Its totient is φ = 4496479680.

The previous prime is 7878383207. The next prime is 7878383257. The reversal of 7878383247 is 7423838787.

It is not a de Polignac number, because 7878383247 - 2⁷ = 7878383119 is a prime.

It is a super-2 number, since 2×7878383247² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7878383207) 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 15 ways as a sum of consecutive naturals, for example, 209454 + ... + 244187.

It is an arithmetic number, because the mean of its divisors is an integer number (751231152).

Almost surely, 2^7878383247 is an apocalyptic number.

7878383247 is a deficient number, since it is larger than the sum of its proper divisors (4141315185).

7878383247 is a wasteful number, since it uses less digits than its factorization.

7878383247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454478.

The product of its digits is 12644352, while the sum is 57.

The square root of 7878383247 is about 88760.2571368515. The cubic root of 7878383247 is about 1989.8134760320.

The spelling of 7878383247 in words is "seven billion, eight hundred seventy-eight million, three hundred eighty-three thousand, two hundred forty-seven".