2134801785577 has 2 divisors, whose sum is σ = 2134801785578. Its totient is φ = 2134801785576.

The previous prime is 2134801785521. The next prime is 2134801785617. The reversal of 2134801785577 is 7755871084312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1720034873001 + 414766912576 = 1311501^2 + 644024^2 .

It is a cyclic number.

It is not a de Polignac number, because 2134801785577 - 2⁷ = 2134801785449 is a prime.

It is not a weakly prime, because it can be changed into another prime (2134801782577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067400892788 + 1067400892789.

It is an arithmetic number, because the mean of its divisors is an integer number (1067400892789).

Almost surely, 2^{2134801785577} is an apocalyptic number.

It is an amenable number.

2134801785577 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134801785577 is an equidigital number, since it uses as much as digits as its factorization.

2134801785577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13171200, while the sum is 58.

The spelling of 2134801785577 in words is "two trillion, one hundred thirty-four billion, eight hundred one million, seven hundred eighty-five thousand, five hundred seventy-seven".