84737574577 has 2 divisors, whose sum is σ = 84737574578. Its totient is φ = 84737574576.

The previous prime is 84737574521. The next prime is 84737574583. The reversal of 84737574577 is 77547573748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51728498721 + 33009075856 = 227439^2 + 181684^2 .

It is a cyclic number.

It is not a de Polignac number, because 84737574577 - 2¹⁵ = 84737541809 is a prime.

It is not a weakly prime, because it can be changed into another prime (84737571577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42368787288 + 42368787289.

It is an arithmetic number, because the mean of its divisors is an integer number (42368787289).

Almost surely, 2^84737574577 is an apocalyptic number.

It is an amenable number.

84737574577 is a deficient number, since it is larger than the sum of its proper divisors (1).

84737574577 is an equidigital number, since it uses as much as digits as its factorization.

84737574577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161347200, while the sum is 64.

The spelling of 84737574577 in words is "eighty-four billion, seven hundred thirty-seven million, five hundred seventy-four thousand, five hundred seventy-seven".