7804670291849 has 2 divisors, whose sum is σ = 7804670291850. Its totient is φ = 7804670291848.

The previous prime is 7804670291839. The next prime is 7804670291909. The reversal of 7804670291849 is 9481920764087.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7028368325449 + 776301966400 = 2651107^2 + 881080^2 .

It is a cyclic number.

It is not a de Polignac number, because 7804670291849 - 2¹² = 7804670287753 is a prime.

It is not a weakly prime, because it can be changed into another prime (7804670291839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3902335145924 + 3902335145925.

It is an arithmetic number, because the mean of its divisors is an integer number (3902335145925).

Almost surely, 2^{7804670291849} is an apocalyptic number.

It is an amenable number.

7804670291849 is a deficient number, since it is larger than the sum of its proper divisors (1).

7804670291849 is an equidigital number, since it uses as much as digits as its factorization.

7804670291849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48771072, while the sum is 65.

The spelling of 7804670291849 in words is "seven trillion, eight hundred four billion, six hundred seventy million, two hundred ninety-one thousand, eight hundred forty-nine".