85345038473 has 2 divisors, whose sum is σ = 85345038474. Its totient is φ = 85345038472.

The previous prime is 85345038463. The next prime is 85345038487. The reversal of 85345038473 is 37483054358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82293249424 + 3051789049 = 286868^2 + 55243^2 .

It is a cyclic number.

It is not a de Polignac number, because 85345038473 - 2¹² = 85345034377 is a prime.

It is not a weakly prime, because it can be changed into another prime (85345038463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42672519236 + 42672519237.

It is an arithmetic number, because the mean of its divisors is an integer number (42672519237).

Almost surely, 2^85345038473 is an apocalyptic number.

It is an amenable number.

85345038473 is a deficient number, since it is larger than the sum of its proper divisors (1).

85345038473 is an equidigital number, since it uses as much as digits as its factorization.

85345038473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4838400, while the sum is 50.

The spelling of 85345038473 in words is "eighty-five billion, three hundred forty-five million, thirty-eight thousand, four hundred seventy-three".