78504876480337 has 2 divisors, whose sum is σ = 78504876480338. Its totient is φ = 78504876480336.

The previous prime is 78504876480301. The next prime is 78504876480341. The reversal of 78504876480337 is 73308467840587.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62409984200001 + 16094892280336 = 7899999^2 + 4011844^2 .

It is a cyclic number.

It is not a de Polignac number, because 78504876480337 - 2³¹ = 78502728996689 is a prime.

It is not a weakly prime, because it can be changed into another prime (78504876480347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39252438240168 + 39252438240169.

It is an arithmetic number, because the mean of its divisors is an integer number (39252438240169).

Almost surely, 2^{78504876480337} is an apocalyptic number.

It is an amenable number.

78504876480337 is a deficient number, since it is larger than the sum of its proper divisors (1).

78504876480337 is an equidigital number, since it uses as much as digits as its factorization.

78504876480337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 758661120, while the sum is 70.

The spelling of 78504876480337 in words is "seventy-eight trillion, five hundred four billion, eight hundred seventy-six million, four hundred eighty thousand, three hundred thirty-seven".