478748831801 has 2 divisors, whose sum is σ = 478748831802. Its totient is φ = 478748831800.

The previous prime is 478748831749. The next prime is 478748831887. The reversal of 478748831801 is 108138847874.

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., 328158268201 + 150590563600 = 572851^2 + 388060^2 .

It is a cyclic number.

It is not a de Polignac number, because 478748831801 - 2³⁰ = 477675089977 is a prime.

It is not a weakly prime, because it can be changed into another prime (478748831401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239374415900 + 239374415901.

It is an arithmetic number, because the mean of its divisors is an integer number (239374415901).

Almost surely, 2^478748831801 is an apocalyptic number.

It is an amenable number.

478748831801 is a deficient number, since it is larger than the sum of its proper divisors (1).

478748831801 is an equidigital number, since it uses as much as digits as its factorization.

478748831801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9633792, while the sum is 59.

The spelling of 478748831801 in words is "four hundred seventy-eight billion, seven hundred forty-eight million, eight hundred thirty-one thousand, eight hundred one".