1148847821801 has 2 divisors, whose sum is σ = 1148847821802. Its totient is φ = 1148847821800.

The previous prime is 1148847821791. The next prime is 1148847821843. The reversal of 1148847821801 is 1081287488411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1011965581225 + 136882240576 = 1005965^2 + 369976^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1148847821801 is a prime.

It is not a weakly prime, because it can be changed into another prime (1148847821861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574423910900 + 574423910901.

It is an arithmetic number, because the mean of its divisors is an integer number (574423910901).

Almost surely, 2^{1148847821801} is an apocalyptic number.

It is an amenable number.

1148847821801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148847821801 is an equidigital number, since it uses as much as digits as its factorization.

1148847821801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 917504, while the sum is 53.

The spelling of 1148847821801 in words is "one trillion, one hundred forty-eight billion, eight hundred forty-seven million, eight hundred twenty-one thousand, eight hundred one".