7819484130 has 24 divisors (see below), whose sum is σ = 20330658972. Its totient is φ = 2085195744.

The previous prime is 7819484119. The next prime is 7819484131. The reversal of 7819484130 is 314849187.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7060536729 + 758947401 = 84027^2 + 27549^2 .

It is a super-2 number, since 2×7819484130² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (7819484131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43441489 + ... + 43441668.

Almost surely, 2^7819484130 is an apocalyptic number.

7819484130 is an abundant number, since it is smaller than the sum of its proper divisors (12511174842).

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

7819484130 is a wasteful number, since it uses less digits than its factorization.

7819484130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86883170 (or 86883167 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 7819484130 is about 88427.8470279583. The cubic root of 7819484130 is about 1984.8424250004.

The spelling of 7819484130 in words is "seven billion, eight hundred nineteen million, four hundred eighty-four thousand, one hundred thirty".