3850454547689 has 2 divisors, whose sum is σ = 3850454547690. Its totient is φ = 3850454547688.

The previous prime is 3850454547617. The next prime is 3850454547707. The reversal of 3850454547689 is 9867454540583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2981606853289 + 868847694400 = 1726733^2 + 932120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3850454547689 is a prime.

It is not a weakly prime, because it can be changed into another prime (3850454547089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1925227273844 + 1925227273845.

It is an arithmetic number, because the mean of its divisors is an integer number (1925227273845).

Almost surely, 2^{3850454547689} is an apocalyptic number.

It is an amenable number.

3850454547689 is a deficient number, since it is larger than the sum of its proper divisors (1).

3850454547689 is an equidigital number, since it uses as much as digits as its factorization.

3850454547689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608000, while the sum is 68.

The spelling of 3850454547689 in words is "three trillion, eight hundred fifty billion, four hundred fifty-four million, five hundred forty-seven thousand, six hundred eighty-nine".