7955851901 has 2 divisors, whose sum is σ = 7955851902. Its totient is φ = 7955851900.

The previous prime is 7955851801. The next prime is 7955851907. The reversal of 7955851901 is 1091585597.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6905443801 + 1050408100 = 83099^2 + 32410^2 .

It is an emirp because it is prime and its reverse (1091585597) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7955851901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7955851901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7955851907) by changing a digit.

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 as a sum of consecutive naturals, namely, 3977925950 + 3977925951.

It is an arithmetic number, because the mean of its divisors is an integer number (3977925951).

Almost surely, 2^7955851901 is an apocalyptic number.

It is an amenable number.

7955851901 is a deficient number, since it is larger than the sum of its proper divisors (1).

7955851901 is an equidigital number, since it uses as much as digits as its factorization.

7955851901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567000, while the sum is 50.

The square root of 7955851901 is about 89195.5822953133. The cubic root of 7955851901 is about 1996.3142033743.

The spelling of 7955851901 in words is "seven billion, nine hundred fifty-five million, eight hundred fifty-one thousand, nine hundred one".