7974830819 has 2 divisors, whose sum is σ = 7974830820. Its totient is φ = 7974830818.

The previous prime is 7974830813. The next prime is 7974830833. The reversal of 7974830819 is 9180384797.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7974830819 - 2²⁴ = 7958053603 is a prime.

It is a super-2 number, since 2×7974830819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7974830813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3987415409 + 3987415410.

It is an arithmetic number, because the mean of its divisors is an integer number (3987415410).

Almost surely, 2^7974830819 is an apocalyptic number.

7974830819 is a deficient number, since it is larger than the sum of its proper divisors (1).

7974830819 is an equidigital number, since it uses as much as digits as its factorization.

7974830819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 56.

The square root of 7974830819 is about 89301.9082606861. The cubic root of 7974830819 is about 1997.9003647873.

The spelling of 7974830819 in words is "seven billion, nine hundred seventy-four million, eight hundred thirty thousand, eight hundred nineteen".