7799378881951 has 2 divisors, whose sum is σ = 7799378881952. Its totient is φ = 7799378881950.

The previous prime is 7799378881891. The next prime is 7799378881963. The reversal of 7799378881951 is 1591888739977.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7799378881951 - 2³¹ = 7797231398303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7799318881951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3899689440975 + 3899689440976.

It is an arithmetic number, because the mean of its divisors is an integer number (3899689440976).

Almost surely, 2^{7799378881951} is an apocalyptic number.

7799378881951 is a deficient number, since it is larger than the sum of its proper divisors (1).

7799378881951 is an equidigital number, since it uses as much as digits as its factorization.

7799378881951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920360960, while the sum is 82.

The spelling of 7799378881951 in words is "seven trillion, seven hundred ninety-nine billion, three hundred seventy-eight million, eight hundred eighty-one thousand, nine hundred fifty-one".