1010199849977 has 2 divisors, whose sum is σ = 1010199849978. Its totient is φ = 1010199849976.

The previous prime is 1010199849959. The next prime is 1010199850001. The reversal of 1010199849977 is 7799489910101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 883865099881 + 126334750096 = 940141^2 + 355436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010199849977 - 2⁶ = 1010199849913 is a prime.

It is not a weakly prime, because it can be changed into another prime (1010199849917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505099924988 + 505099924989.

It is an arithmetic number, because the mean of its divisors is an integer number (505099924989).

Almost surely, 2^{1010199849977} is an apocalyptic number.

It is an amenable number.

1010199849977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010199849977 is an equidigital number, since it uses as much as digits as its factorization.

1010199849977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10287648, while the sum is 65.

The spelling of 1010199849977 in words is "one trillion, ten billion, one hundred ninety-nine million, eight hundred forty-nine thousand, nine hundred seventy-seven".