78750201577 has 2 divisors, whose sum is σ = 78750201578. Its totient is φ = 78750201576.

The previous prime is 78750201553. The next prime is 78750201601. The reversal of 78750201577 is 77510205787.

It is a balanced prime because it is at equal distance from previous prime (78750201553) and next prime (78750201601).

It can be written as a sum of positive squares in only one way, i.e., 54761148121 + 23989053456 = 234011^2 + 154884^2 .

It is a cyclic number.

It is not a de Polignac number, because 78750201577 - 2¹¹ = 78750199529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78750201577.

It is not a weakly prime, because it can be changed into another prime (78750208577) 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, 39375100788 + 39375100789.

It is an arithmetic number, because the mean of its divisors is an integer number (39375100789).

Almost surely, 2^78750201577 is an apocalyptic number.

It is an amenable number.

78750201577 is a deficient number, since it is larger than the sum of its proper divisors (1).

78750201577 is an equidigital number, since it uses as much as digits as its factorization.

78750201577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960400, while the sum is 49.

The spelling of 78750201577 in words is "seventy-eight billion, seven hundred fifty million, two hundred one thousand, five hundred seventy-seven".