78011380378753 has 2 divisors, whose sum is σ = 78011380378754. Its totient is φ = 78011380378752.

The previous prime is 78011380378751. The next prime is 78011380378849. The reversal of 78011380378753 is 35787308311087.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77962948693569 + 48431685184 = 8829663^2 + 220072^2 .

It is a cyclic number.

It is not a de Polignac number, because 78011380378753 - 2¹ = 78011380378751 is a prime.

Together with 78011380378751, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 78011380378691 and 78011380378700.

It is not a weakly prime, because it can be changed into another prime (78011380378751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39005690189376 + 39005690189377.

It is an arithmetic number, because the mean of its divisors is an integer number (39005690189377).

Almost surely, 2^{78011380378753} is an apocalyptic number.

It is an amenable number.

78011380378753 is a deficient number, since it is larger than the sum of its proper divisors (1).

78011380378753 is an equidigital number, since it uses as much as digits as its factorization.

78011380378753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23708160, while the sum is 61.

The spelling of 78011380378753 in words is "seventy-eight trillion, eleven billion, three hundred eighty million, three hundred seventy-eight thousand, seven hundred fifty-three".