83533838777 has 2 divisors, whose sum is σ = 83533838778. Its totient is φ = 83533838776.

The previous prime is 83533838629. The next prime is 83533838813. The reversal of 83533838777 is 77783833538.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81181685776 + 2352153001 = 284924^2 + 48499^2 .

It is a cyclic number.

It is not a de Polignac number, because 83533838777 - 2¹⁰ = 83533837753 is a prime.

It is not a weakly prime, because it can be changed into another prime (83533838177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41766919388 + 41766919389.

It is an arithmetic number, because the mean of its divisors is an integer number (41766919389).

Almost surely, 2^83533838777 is an apocalyptic number.

It is an amenable number.

83533838777 is a deficient number, since it is larger than the sum of its proper divisors (1).

83533838777 is an equidigital number, since it uses as much as digits as its factorization.

83533838777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71124480, while the sum is 62.

The spelling of 83533838777 in words is "eighty-three billion, five hundred thirty-three million, eight hundred thirty-eight thousand, seven hundred seventy-seven".