84211428737 has 2 divisors, whose sum is σ = 84211428738. Its totient is φ = 84211428736.

The previous prime is 84211428727. The next prime is 84211428751. The reversal of 84211428737 is 73782411248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58661324401 + 25550104336 = 242201^2 + 159844^2 .

It is a cyclic number.

It is not a de Polignac number, because 84211428737 - 2¹⁴ = 84211412353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84211428691 and 84211428700.

It is not a weakly prime, because it can be changed into another prime (84211428727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42105714368 + 42105714369.

It is an arithmetic number, because the mean of its divisors is an integer number (42105714369).

Almost surely, 2^84211428737 is an apocalyptic number.

It is an amenable number.

84211428737 is a deficient number, since it is larger than the sum of its proper divisors (1).

84211428737 is an equidigital number, since it uses as much as digits as its factorization.

84211428737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 602112, while the sum is 47.

The spelling of 84211428737 in words is "eighty-four billion, two hundred eleven million, four hundred twenty-eight thousand, seven hundred thirty-seven".