52019278765901 has 2 divisors, whose sum is σ = 52019278765902. Its totient is φ = 52019278765900.

The previous prime is 52019278765897. The next prime is 52019278765963. The reversal of 52019278765901 is 10956787291025.

It is an a-pointer prime, because the next prime (52019278765963) can be obtained adding 52019278765901 to its sum of digits (62).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38767421869801 + 13251856896100 = 6226349^2 + 3640310^2 .

It is a cyclic number.

It is not a de Polignac number, because 52019278765901 - 2² = 52019278765897 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52019278765801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26009639382950 + 26009639382951.

It is an arithmetic number, because the mean of its divisors is an integer number (26009639382951).

Almost surely, 2^{52019278765901} is an apocalyptic number.

It is an amenable number.

52019278765901 is a deficient number, since it is larger than the sum of its proper divisors (1).

52019278765901 is an equidigital number, since it uses as much as digits as its factorization.

52019278765901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19051200, while the sum is 62.

The spelling of 52019278765901 in words is "fifty-two trillion, nineteen billion, two hundred seventy-eight million, seven hundred sixty-five thousand, nine hundred one".