78946353037 has 2 divisors, whose sum is σ = 78946353038. Its totient is φ = 78946353036.

The previous prime is 78946353011. The next prime is 78946353061. The reversal of 78946353037 is 73035364987.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42548963076 + 36397389961 = 206274^2 + 190781^2 .

It is a cyclic number.

It is not a de Polignac number, because 78946353037 - 2²³ = 78937964429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78946353137) 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, 39473176518 + 39473176519.

It is an arithmetic number, because the mean of its divisors is an integer number (39473176519).

Almost surely, 2^78946353037 is an apocalyptic number.

It is an amenable number.

78946353037 is a deficient number, since it is larger than the sum of its proper divisors (1).

78946353037 is an equidigital number, since it uses as much as digits as its factorization.

78946353037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 55.

The spelling of 78946353037 in words is "seventy-eight billion, nine hundred forty-six million, three hundred fifty-three thousand, thirty-seven".