2068535099957 has 2 divisors, whose sum is σ = 2068535099958. Its totient is φ = 2068535099956.

The previous prime is 2068535099941. The next prime is 2068535099987. The reversal of 2068535099957 is 7599905358602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1238165827441 + 830369272516 = 1112729^2 + 911246^2 .

It is a cyclic number.

It is not a de Polignac number, because 2068535099957 - 2⁴ = 2068535099941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2068535099987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1034267549978 + 1034267549979.

It is an arithmetic number, because the mean of its divisors is an integer number (1034267549979).

Almost surely, 2^{2068535099957} is an apocalyptic number.

It is an amenable number.

2068535099957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2068535099957 is an equidigital number, since it uses as much as digits as its factorization.

2068535099957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183708000, while the sum is 68.

The spelling of 2068535099957 in words is "two trillion, sixty-eight billion, five hundred thirty-five million, ninety-nine thousand, nine hundred fifty-seven".