78878363300501 has 2 divisors, whose sum is σ = 78878363300502. Its totient is φ = 78878363300500.

The previous prime is 78878363300483. The next prime is 78878363300519. The reversal of 78878363300501 is 10500336387887.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (78878363300483) and next prime (78878363300519).

It can be written as a sum of positive squares in only one way, i.e., 54745215798001 + 24133147502500 = 7399001^2 + 4912550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78878363300501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78878363320501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39439181650250 + 39439181650251.

It is an arithmetic number, because the mean of its divisors is an integer number (39439181650251).

Almost surely, 2^{78878363300501} is an apocalyptic number.

It is an amenable number.

78878363300501 is a deficient number, since it is larger than the sum of its proper divisors (1).

78878363300501 is an equidigital number, since it uses as much as digits as its factorization.

78878363300501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20321280, while the sum is 59.

The spelling of 78878363300501 in words is "seventy-eight trillion, eight hundred seventy-eight billion, three hundred sixty-three million, three hundred thousand, five hundred one".