5478154802077 has 2 divisors, whose sum is σ = 5478154802078. Its totient is φ = 5478154802076.

The previous prime is 5478154802063. The next prime is 5478154802111. The reversal of 5478154802077 is 7702084518745.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5460732386041 + 17422416036 = 2336821^2 + 131994^2 .

It is a cyclic number.

It is not a de Polignac number, because 5478154802077 - 2³⁵ = 5443795063709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5478154802177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2739077401038 + 2739077401039.

It is an arithmetic number, because the mean of its divisors is an integer number (2739077401039).

Almost surely, 2^{5478154802077} is an apocalyptic number.

It is an amenable number.

5478154802077 is a deficient number, since it is larger than the sum of its proper divisors (1).

5478154802077 is an equidigital number, since it uses as much as digits as its factorization.

5478154802077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17561600, while the sum is 58.

The spelling of 5478154802077 in words is "five trillion, four hundred seventy-eight billion, one hundred fifty-four million, eight hundred two thousand, seventy-seven".