7847451020 has 12 divisors (see below), whose sum is σ = 16479647184. Its totient is φ = 3138980400.

The previous prime is 7847450999. The next prime is 7847451037. The reversal of 7847451020 is 201547487.

It is a super-2 number, since 2×7847451020² (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 196186256 + ... + 196186295.

It is an arithmetic number, because the mean of its divisors is an integer number (1373303932).

Almost surely, 2^7847451020 is an apocalyptic number.

It is an amenable number.

7847451020 is an abundant number, since it is smaller than the sum of its proper divisors (8632196164).

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

7847451020 is a wasteful number, since it uses less digits than its factorization.

7847451020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392372560 (or 392372558 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 38.

The square root of 7847451020 is about 88585.8398391075. The cubic root of 7847451020 is about 1987.2059152178.

The spelling of 7847451020 in words is "seven billion, eight hundred forty-seven million, four hundred fifty-one thousand, twenty".